在 LinearLayout 中彼此相邻添加动态生成的按钮
Adding dynamically generated buttons next to each other in LinearLayout
我已尝试查找此问题的示例,但找不到合适的示例。
我想要的是两个彼此相邻的按钮,来自自动生成的按钮列表。方法 newAddButtonToLayout
是我尝试做的东西。
我在 运行 时收到此错误:
Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
在 row.addView(button)
这里是activity代码:
package com.code.p2_project.finalevaluationapp;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import java.util.ArrayList;
public class ExerciseList extends Activity implements View.OnClickListener {
private ArrayList<Exercise> list = new ArrayList<Exercise>();
//This array holds the exercises
private ArrayList<Button> buttons = new ArrayList<Button>();
//This array holds the buttons
private ArrayList<Exercise> exercises = new ArrayList<Exercise>();//store them in ArrayList called exercises
private CategoryTypes categoryType;
private TangibleTypes tangibleType;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_exercise_list);
LinearLayout relativeLayout = (LinearLayout) findViewById(R.id.exerciseLayout); //The layout used to put the buttons in
Intent intent = getIntent();
categoryType = CategoryTypes.valueOf(intent.getStringExtra("categoyType"));
tangibleType = TangibleTypes.valueOf(intent.getStringExtra("tangibleType"));
System.out.println("Category sent was: "+categoryType);
System.out.println("Tangible sent was: "+tangibleType);
//Contruction and putting the objects into the aforementioned Exercise Array
//TODO: Add this to the aforementioned method
/*for (int i = 0; i <= 200; i++)
{
list.add(new Exercise("Exercise "+i, CategoryTypes.MOBILITY, TangibleTypes.CHAIR, "Lav sværhedsgrad",R.string.flexChair,this));
}*/
//Add BALANCE exercises here
list.add(new Exercise("Øvelse 1",CategoryTypes.BALANCE, TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 5",CategoryTypes.BALANCE, TangibleTypes.TABLE,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 1",CategoryTypes.BALANCE, TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
//Add STRENGTH exercises here
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
//Add Mobility exercises here
list.add(new Exercise("Øvelse 3",CategoryTypes.MOBILITY, TangibleTypes.NOTHING,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 6",CategoryTypes.MOBILITY,TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 3",CategoryTypes.MOBILITY, TangibleTypes.NOTHING,"Høj sværhedsgrad",R.string.flexChair,this));
//Add CARDIO exercises here
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
exercises = filterExercises(categoryType,tangibleType);
//Creating the buttons depending on the size of the list
// and setting the names to the list names
for (int i = 0; i < exercises.size(); i++)
{
MainActivity.makeButton(this, this, exercises.get(i).getExerciseName(), buttons, exercises.get(i).getColor(), i);
}
//Adding buttons to the layout and deleting the "wrong" buttons
for (int i = 0; i < buttons.size(); i++)
{
newAddButtonToLayout(buttons.get(i), relativeLayout, this, i);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_exercise_list, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//CategoryTypes categories = CategoryTypes.values()[which];
private ArrayList<Exercise> filterExercises (CategoryTypes categoryType, TangibleTypes tangibleType)
{
for (Exercise exercise : this.list) {
System.out.println("exercise"+exercise.toString());
if (exercise.isCategoryType(categoryType) && exercise.isTangibleType(tangibleType)) {
System.out.println("match");
exercises.add(exercise);
}
else if (categoryType == CategoryTypes.ALL && tangibleType == TangibleTypes.ALL)
{
exercises.add(exercise);
}
else if (categoryType == CategoryTypes.ALL && exercise.isTangibleType(tangibleType))
{
exercises.add(exercise);
}
else if (exercise.isCategoryType(categoryType) && tangibleType == TangibleTypes.ALL)
{
exercises.add(exercise);
}
}
return exercises;
}
public void sendWithData(int index)
{
Intent sendToClass = new Intent (this, ExerciseView.class);
sendToClass.putExtra("exerciseTitle",buttons.get(index).getText());
sendToClass.putExtra("difficulty",exercises.get(index).getDifficulty());
sendToClass.putExtra("description",R.string.flexChair);
startActivity(sendToClass);
}
@Override
public void onClick(View view)
{
for (int i = 0; i < exercises.size(); i++) {
if (view.getId() == i) {
String buttonName = exercises.get(i).getExerciseName();
switch (buttonName) {
case "Øvelse 1":
sendWithData(i);
break;
case "Øvelse 2": sendWithData(i);
break;
case "Øvelse 3":
sendWithData(i);
break;
case "Øvelse 4": sendWithData(i);
break;
case "Øvelse 5":
sendWithData(i);
break;
case "Øvelse 6": sendWithData(i);
break;
}
}
}
}
public void newAddButtonToLayout (Button button, LinearLayout layout, Context context, int index)
{
int counter = 0;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
params.weight = 1.0f;
params.setMargins(0,20,0,20);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
ArrayList<LinearLayout> rows = new ArrayList<LinearLayout>();
for (int i = 0; i < buttons.size(); i++)
{
if (counter == buttons.get(i).getId())
{
LinearLayout row = new LinearLayout(context);
row.setId(1000 + i);
row.setLayoutParams(layoutParams);
button.setLayoutParams(params);
row.addView(button);
layout.addView(row);
counter += 2;
rows.add(row);
}
}
for (int i = 0; i < rows.size(); i++)
{
layout.addView(rows.get(i));
System.out.println("Button's parent is: "+button.getParent());
}
}
}
以及静态引用的 makeButtons
public static void makeButton (Context context, View.OnClickListener view, String buttonText, ArrayList<Button> buttons, int colour, int id)
{
Typeface tf = Typeface.createFromAsset(context.getAssets(),"fonts/RobotoSlab-Regular.ttf");
Typeface tfBold = Typeface.createFromAsset(context.getAssets(),"fonts/RobotoSlab-Bold.ttf");
Button button = new Button(context);
button.setText(buttonText);
button.setId(id);
button.setOnClickListener(view);
button.setBackgroundColor(colour);
button.setPadding(0, 20, 0, 20);
button.setTextSize(25);
button.setTypeface(tfBold);
buttons.add(button);
System.out.println(button.getId());
}
如何在视图中添加 2 个按钮并将其添加到按钮 ArrayList 中的任意数量的按钮?不使用 ListView 或适配器?
(注意:我试过找到按钮的父级,但它是空的)
您为每个按钮添加了两次按钮。到达这里 ->
for (int i = 0; i < buttons.size(); i++)
{
newAddButtonToLayout(buttons.get(i), relativeLayout, this, i);
}
并且在您的 newAddButtonToLayout()
方法中一次。所以我认为你应该将这个方法转换为:
public void newAddButtonToLayout (Button button, LinearLayout layout, Context context){
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);
params.weight = 1.0f;
params.setMargins(0,20,0,20);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
layout.setLayoutParams(layoutParams);
button.setLayoutParams(params);
layout.addView(button);
}
输入你的xml:
<LinearLayout
android:paddingTop="10dp"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:fillViewport="true"
android:id="@+id/layoutInbox"
android:background="#f4f3f8"></LinearLayout>
并在您的 class 中放入一个方法并在 OnCreate
中调用它
private void buildInboxItems() {
final LinearLayout inboxLayout = (LinearLayout) findViewById(R.id.layoutInbox);
final String[] buttonsInfoList = new String[]{"image1#text1#1",
"image2#text2#2"};
final List<Button> buttonsList = new ArrayList<Button>();
for (int i = 0; i < buttonsInfoList.length; i++) {
final Button customButton = new Button(this);
customButton.setId(100 + i);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
if (i >= 0) {
String image = buttonsInfoList[i];
String[] parts = image.split("#");
String imagePart = parts[0];
String textPart = parts[1];
final String tagPart = parts[2];
Drawable img = GetImage(getApplicationContext(), imagePart);
customButton.setTag(Integer.parseInt(tagPart));
customButton.setCompoundDrawablesWithIntrinsicBounds(null, img, null, null);
customButton.setBackgroundColor(Color.TRANSPARENT);
customButton.setText(textPart);
customButton.setTextColor(getResources().getColor(R.color.CustomGray));
customButton.setLayoutParams(lp);
final int index = i;
final int[] buttonIdsList = new int[buttonsInfoList.length];
buttonIdsList[i] = index;
customButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (Button button : buttonsList) {
if (button.getId() == v.getId()) {
// button.setBackgroundColor(Color.RED);
Drawable imgOn = GetImage(getApplicationContext(), "imageButtonClicked");
button.setTextColor(getResources().getColor(R.color.CustomOrange));
button.setCompoundDrawablesWithIntrinsicBounds(null, imgOn, null, null);
} else {
// button.setBackgroundColor(Color.BLUE);
Drawable imgOff = GetImage(getApplicationContext(), "imageButtonNotClicked");
button.setTextColor(getResources().getColor(R.color.CustomGray));
button.setCompoundDrawablesWithIntrinsicBounds(null, imgOff, null, null);
}
}
}
});
}
// setMargins(int left, int top, int right, int bottom)
lp.setMargins(60, 5, 60, 5);
lp.width = 120;
lp.height = 150;
inboxLayout.addView(customButton, lp);
buttonsList.add(customButton);
}
}
我希望这会有所帮助,按钮是动态绘制的,点击的按钮会突出显示..
根据我们的私人聊天,这非常有效,祝你造型成功。
public void newAddButtonToLayout (Context context)
{
int counter = 1;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
300);
params.weight = 1f;
params.setMargins(10,10,10,10);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
ArrayList<LinearLayout> rows = new ArrayList<>();
for (int i = 0; i < buttons.size(); i++)
{
if (counter == buttons.get(i).getId())
{
LinearLayout row = new LinearLayout(context);
row.setId(1000 + i);
row.setLayoutParams(layoutParams);
if(i <= buttons.size()) {
if(i == buttons.size()) {
if(buttons.size() % 2 == 0) {
buttons.get(i - 1).setLayoutParams(params);
row.addView(buttons.get(i - 1));
}
} else {
buttons.get(i - 1).setLayoutParams(params);
row.addView(buttons.get(i - 1));
}
}
buttons.get(i).setLayoutParams(params);
row.addView(buttons.get(i));
//relativeLayout.addView(buttons.get(i));
relativeLayout.addView(row);
counter += 2;
System.out.println(buttons.get(i).getId() + " BUTTON HERE");
//rows.add(row);
}
if(i == buttons.size()-1) {
System.out.println("IT IS IN THE LOOP");
if(buttons.size() % 2 != 0) {
buttons.get(i).setLayoutParams(params);
relativeLayout.addView(buttons.get(buttons.size()-1));
}
}
}
您可以使用 google flexboxlayout 动态添加按钮。
里面xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/thanks_bottom_background"
android:orientation="vertical">
<com.google.android.flexbox.FlexboxLayout
android:id="@+id/mainRecepientLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="20dp"
app:alignContent="flex_start"
app:alignItems="flex_start"
app:flexWrap="wrap" />
</LinearLayout>
里面activity
private void addRecepientList(ArrayList<User> recipientsOfThanks, FlexboxLayout layoutRecepient)
{
for (int i = 0; i < recipientsOfThanks.size(); i++) {
LinearLayout layout = new LinearLayout(getContext());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layout.setOrientation(LinearLayout.HORIZONTAL);
layout.setPadding(0, 10, 0, 10);
layout.setLayoutParams(params);
Button userLabel = new Button(getContext());
userLabel.setLayoutParams(params);
userLabel.setPadding(0, 20, 0, 20);
layout.addView(userLabel);
layoutRecepient.addView(layout);
}
我已尝试查找此问题的示例,但找不到合适的示例。
我想要的是两个彼此相邻的按钮,来自自动生成的按钮列表。方法 newAddButtonToLayout
是我尝试做的东西。
我在 运行 时收到此错误:
Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
在 row.addView(button)
这里是activity代码:
package com.code.p2_project.finalevaluationapp;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import java.util.ArrayList;
public class ExerciseList extends Activity implements View.OnClickListener {
private ArrayList<Exercise> list = new ArrayList<Exercise>();
//This array holds the exercises
private ArrayList<Button> buttons = new ArrayList<Button>();
//This array holds the buttons
private ArrayList<Exercise> exercises = new ArrayList<Exercise>();//store them in ArrayList called exercises
private CategoryTypes categoryType;
private TangibleTypes tangibleType;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_exercise_list);
LinearLayout relativeLayout = (LinearLayout) findViewById(R.id.exerciseLayout); //The layout used to put the buttons in
Intent intent = getIntent();
categoryType = CategoryTypes.valueOf(intent.getStringExtra("categoyType"));
tangibleType = TangibleTypes.valueOf(intent.getStringExtra("tangibleType"));
System.out.println("Category sent was: "+categoryType);
System.out.println("Tangible sent was: "+tangibleType);
//Contruction and putting the objects into the aforementioned Exercise Array
//TODO: Add this to the aforementioned method
/*for (int i = 0; i <= 200; i++)
{
list.add(new Exercise("Exercise "+i, CategoryTypes.MOBILITY, TangibleTypes.CHAIR, "Lav sværhedsgrad",R.string.flexChair,this));
}*/
//Add BALANCE exercises here
list.add(new Exercise("Øvelse 1",CategoryTypes.BALANCE, TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 5",CategoryTypes.BALANCE, TangibleTypes.TABLE,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 1",CategoryTypes.BALANCE, TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
//Add STRENGTH exercises here
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 2",CategoryTypes.STRENGTH, TangibleTypes.BAND,"Mellem sværhedsgrad",R.string.flexChair,this));
//Add Mobility exercises here
list.add(new Exercise("Øvelse 3",CategoryTypes.MOBILITY, TangibleTypes.NOTHING,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 6",CategoryTypes.MOBILITY,TangibleTypes.CHAIR,"Lav sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 3",CategoryTypes.MOBILITY, TangibleTypes.NOTHING,"Høj sværhedsgrad",R.string.flexChair,this));
//Add CARDIO exercises here
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
list.add(new Exercise("Øvelse 4",CategoryTypes.CARDIO, TangibleTypes.TABLE,"Høj sværhedsgrad",R.string.flexChair,this));
exercises = filterExercises(categoryType,tangibleType);
//Creating the buttons depending on the size of the list
// and setting the names to the list names
for (int i = 0; i < exercises.size(); i++)
{
MainActivity.makeButton(this, this, exercises.get(i).getExerciseName(), buttons, exercises.get(i).getColor(), i);
}
//Adding buttons to the layout and deleting the "wrong" buttons
for (int i = 0; i < buttons.size(); i++)
{
newAddButtonToLayout(buttons.get(i), relativeLayout, this, i);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_exercise_list, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
//CategoryTypes categories = CategoryTypes.values()[which];
private ArrayList<Exercise> filterExercises (CategoryTypes categoryType, TangibleTypes tangibleType)
{
for (Exercise exercise : this.list) {
System.out.println("exercise"+exercise.toString());
if (exercise.isCategoryType(categoryType) && exercise.isTangibleType(tangibleType)) {
System.out.println("match");
exercises.add(exercise);
}
else if (categoryType == CategoryTypes.ALL && tangibleType == TangibleTypes.ALL)
{
exercises.add(exercise);
}
else if (categoryType == CategoryTypes.ALL && exercise.isTangibleType(tangibleType))
{
exercises.add(exercise);
}
else if (exercise.isCategoryType(categoryType) && tangibleType == TangibleTypes.ALL)
{
exercises.add(exercise);
}
}
return exercises;
}
public void sendWithData(int index)
{
Intent sendToClass = new Intent (this, ExerciseView.class);
sendToClass.putExtra("exerciseTitle",buttons.get(index).getText());
sendToClass.putExtra("difficulty",exercises.get(index).getDifficulty());
sendToClass.putExtra("description",R.string.flexChair);
startActivity(sendToClass);
}
@Override
public void onClick(View view)
{
for (int i = 0; i < exercises.size(); i++) {
if (view.getId() == i) {
String buttonName = exercises.get(i).getExerciseName();
switch (buttonName) {
case "Øvelse 1":
sendWithData(i);
break;
case "Øvelse 2": sendWithData(i);
break;
case "Øvelse 3":
sendWithData(i);
break;
case "Øvelse 4": sendWithData(i);
break;
case "Øvelse 5":
sendWithData(i);
break;
case "Øvelse 6": sendWithData(i);
break;
}
}
}
}
public void newAddButtonToLayout (Button button, LinearLayout layout, Context context, int index)
{
int counter = 0;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
params.weight = 1.0f;
params.setMargins(0,20,0,20);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
ArrayList<LinearLayout> rows = new ArrayList<LinearLayout>();
for (int i = 0; i < buttons.size(); i++)
{
if (counter == buttons.get(i).getId())
{
LinearLayout row = new LinearLayout(context);
row.setId(1000 + i);
row.setLayoutParams(layoutParams);
button.setLayoutParams(params);
row.addView(button);
layout.addView(row);
counter += 2;
rows.add(row);
}
}
for (int i = 0; i < rows.size(); i++)
{
layout.addView(rows.get(i));
System.out.println("Button's parent is: "+button.getParent());
}
}
}
以及静态引用的 makeButtons
public static void makeButton (Context context, View.OnClickListener view, String buttonText, ArrayList<Button> buttons, int colour, int id)
{
Typeface tf = Typeface.createFromAsset(context.getAssets(),"fonts/RobotoSlab-Regular.ttf");
Typeface tfBold = Typeface.createFromAsset(context.getAssets(),"fonts/RobotoSlab-Bold.ttf");
Button button = new Button(context);
button.setText(buttonText);
button.setId(id);
button.setOnClickListener(view);
button.setBackgroundColor(colour);
button.setPadding(0, 20, 0, 20);
button.setTextSize(25);
button.setTypeface(tfBold);
buttons.add(button);
System.out.println(button.getId());
}
如何在视图中添加 2 个按钮并将其添加到按钮 ArrayList 中的任意数量的按钮?不使用 ListView 或适配器?
(注意:我试过找到按钮的父级,但它是空的)
您为每个按钮添加了两次按钮。到达这里 ->
for (int i = 0; i < buttons.size(); i++)
{
newAddButtonToLayout(buttons.get(i), relativeLayout, this, i);
}
并且在您的 newAddButtonToLayout()
方法中一次。所以我认为你应该将这个方法转换为:
public void newAddButtonToLayout (Button button, LinearLayout layout, Context context){
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);
params.weight = 1.0f;
params.setMargins(0,20,0,20);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
layout.setLayoutParams(layoutParams);
button.setLayoutParams(params);
layout.addView(button);
}
输入你的xml:
<LinearLayout
android:paddingTop="10dp"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:fillViewport="true"
android:id="@+id/layoutInbox"
android:background="#f4f3f8"></LinearLayout>
并在您的 class 中放入一个方法并在 OnCreate
中调用它private void buildInboxItems() {
final LinearLayout inboxLayout = (LinearLayout) findViewById(R.id.layoutInbox);
final String[] buttonsInfoList = new String[]{"image1#text1#1",
"image2#text2#2"};
final List<Button> buttonsList = new ArrayList<Button>();
for (int i = 0; i < buttonsInfoList.length; i++) {
final Button customButton = new Button(this);
customButton.setId(100 + i);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
if (i >= 0) {
String image = buttonsInfoList[i];
String[] parts = image.split("#");
String imagePart = parts[0];
String textPart = parts[1];
final String tagPart = parts[2];
Drawable img = GetImage(getApplicationContext(), imagePart);
customButton.setTag(Integer.parseInt(tagPart));
customButton.setCompoundDrawablesWithIntrinsicBounds(null, img, null, null);
customButton.setBackgroundColor(Color.TRANSPARENT);
customButton.setText(textPart);
customButton.setTextColor(getResources().getColor(R.color.CustomGray));
customButton.setLayoutParams(lp);
final int index = i;
final int[] buttonIdsList = new int[buttonsInfoList.length];
buttonIdsList[i] = index;
customButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (Button button : buttonsList) {
if (button.getId() == v.getId()) {
// button.setBackgroundColor(Color.RED);
Drawable imgOn = GetImage(getApplicationContext(), "imageButtonClicked");
button.setTextColor(getResources().getColor(R.color.CustomOrange));
button.setCompoundDrawablesWithIntrinsicBounds(null, imgOn, null, null);
} else {
// button.setBackgroundColor(Color.BLUE);
Drawable imgOff = GetImage(getApplicationContext(), "imageButtonNotClicked");
button.setTextColor(getResources().getColor(R.color.CustomGray));
button.setCompoundDrawablesWithIntrinsicBounds(null, imgOff, null, null);
}
}
}
});
}
// setMargins(int left, int top, int right, int bottom)
lp.setMargins(60, 5, 60, 5);
lp.width = 120;
lp.height = 150;
inboxLayout.addView(customButton, lp);
buttonsList.add(customButton);
}
}
我希望这会有所帮助,按钮是动态绘制的,点击的按钮会突出显示..
根据我们的私人聊天,这非常有效,祝你造型成功。
public void newAddButtonToLayout (Context context)
{
int counter = 1;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
300);
params.weight = 1f;
params.setMargins(10,10,10,10);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layoutParams.gravity = Gravity.RIGHT;
ArrayList<LinearLayout> rows = new ArrayList<>();
for (int i = 0; i < buttons.size(); i++)
{
if (counter == buttons.get(i).getId())
{
LinearLayout row = new LinearLayout(context);
row.setId(1000 + i);
row.setLayoutParams(layoutParams);
if(i <= buttons.size()) {
if(i == buttons.size()) {
if(buttons.size() % 2 == 0) {
buttons.get(i - 1).setLayoutParams(params);
row.addView(buttons.get(i - 1));
}
} else {
buttons.get(i - 1).setLayoutParams(params);
row.addView(buttons.get(i - 1));
}
}
buttons.get(i).setLayoutParams(params);
row.addView(buttons.get(i));
//relativeLayout.addView(buttons.get(i));
relativeLayout.addView(row);
counter += 2;
System.out.println(buttons.get(i).getId() + " BUTTON HERE");
//rows.add(row);
}
if(i == buttons.size()-1) {
System.out.println("IT IS IN THE LOOP");
if(buttons.size() % 2 != 0) {
buttons.get(i).setLayoutParams(params);
relativeLayout.addView(buttons.get(buttons.size()-1));
}
}
}
您可以使用 google flexboxlayout 动态添加按钮。
里面xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/thanks_bottom_background"
android:orientation="vertical">
<com.google.android.flexbox.FlexboxLayout
android:id="@+id/mainRecepientLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="20dp"
app:alignContent="flex_start"
app:alignItems="flex_start"
app:flexWrap="wrap" />
</LinearLayout>
里面activity
private void addRecepientList(ArrayList<User> recipientsOfThanks, FlexboxLayout layoutRecepient)
{
for (int i = 0; i < recipientsOfThanks.size(); i++) {
LinearLayout layout = new LinearLayout(getContext());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
layout.setOrientation(LinearLayout.HORIZONTAL);
layout.setPadding(0, 10, 0, 10);
layout.setLayoutParams(params);
Button userLabel = new Button(getContext());
userLabel.setLayoutParams(params);
userLabel.setPadding(0, 20, 0, 20);
layout.addView(userLabel);
layoutRecepient.addView(layout);
}