Android 添加 TabHost 后应用程序崩溃
Android Application is crashing after adding TabHost
我正在制作一个应用程序，它可以通过观看教程将联系人添加到您的 phone 联系人列表，但是当我将标签添加到我的应用程序并 运行 它时，它崩溃并显示消息不幸的是我的应用程序已停止
这是我的主xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="wrap_content" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".Contact_main"
android:orientation="vertical"
android:id="@+id/background">
<TabHost
android:layout_width="match_parent"
android:layout_height="400dp"
android:id="@+id/tabhost"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"></TabWidget>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:id="@+id/tab1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Contact Creators"
android:id="@+id/lblcreatortitle"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:textSize="30sp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:ems="10"
android:id="@+id/textname"
android:layout_marginTop="15dp"
android:hint="Contact name" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="phone"
android:ems="10"
android:id="@+id/textphone"
android:layout_gravity="center"
android:hint="Phone no"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp"
android:editable="false" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:ems="10"
android:id="@+id/textemail"
android:layout_gravity="center_horizontal"
android:hint="Email"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:id="@+id/textaddress"
android:layout_gravity="center_horizontal"
android:hint="Address"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp"
android:inputType="textPostalAddress" />
<Button
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="Add Contact"
android:id="@+id/buttonadd"
android:layout_gravity="center"
android:layout_marginTop="15dp"
android:enabled="false" />
</LinearLayout>
<LinearLayout
android:id="@+id/tab2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"></LinearLayout>
</FrameLayout>
</LinearLayout>
</TabHost>
这是我的主要活动
package com.example.sayedshazeb.contact;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TabHost;
public class Contact_main extends ActionBarActivity {
EditText nametext,phonetext,emailtext,adresstext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact_main);
nametext = (EditText) findViewById(R.id.textname);
phonetext = (EditText) findViewById(R.id.textphone);
emailtext = (EditText) findViewById(R.id.textemail);
adresstext = (EditText) findViewById(R.id.textaddress);
TabHost tabHost = (TabHost)findViewById (R.id.tabhost);
tabHost.setup();
TabHost.TabSpec spec1 = tabHost.newTabSpec("Tab1");
spec1.setContent(R.id.tab1);
spec1.setIndicator("Contact");
TabHost.TabSpec spec2 = tabHost.newTabSpec("Tab2");
spec2.setContent(R.id.tab2);
spec2.setIndicator("List");
tabHost.addTab(spec1);
tabHost.addTab(spec2);
final Button addbtn = (Button) findViewById(R.id.buttonadd);
nametext.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
addbtn.setEnabled(!nametext.getText().toString().trim().isEmpty());
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
}
这是我的日志-
01-21 11:23:02.784 3064-3064/com.example.sayedshazeb.contact E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.sayedshazeb.contact, PID: 3064
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sayedshazeb.contact/com.example.sayedshazeb.contact.Contact_main}: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2237)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:212)
at android.app.ActivityThread.main(ActivityThread.java:5137)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:718)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator.
at android.widget.TabHost.addTab(TabHost.java:221)
at com.example.sayedshazeb.contact.Contact_main.onCreate(Contact_main.java:36)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:212)
at android.app.ActivityThread.main(ActivityThread.java:5137)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:718)
at dalvik.system.NativeStart.main(Native Method)
我不知道我做错了什么？为什么我的应用程序在添加选项卡后崩溃？
当您从 xml 绑定 TabHost 时，您似乎使用的是 android.R.id.tabhost 而不是 R.id.tabhost。没有一些 logcat 输出那是我最好的猜测。
祝你好运
我正在制作一个应用程序，它可以通过观看教程将联系人添加到您的 phone 联系人列表，但是当我将标签添加到我的应用程序并 运行 它时，它崩溃并显示消息不幸的是我的应用程序已停止
这是我的主xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="wrap_content" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".Contact_main"
android:orientation="vertical"
android:id="@+id/background">
<TabHost
android:layout_width="match_parent"
android:layout_height="400dp"
android:id="@+id/tabhost"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"></TabWidget>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:id="@+id/tab1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Contact Creators"
android:id="@+id/lblcreatortitle"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:textSize="30sp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textPersonName"
android:ems="10"
android:id="@+id/textname"
android:layout_marginTop="15dp"
android:hint="Contact name" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="phone"
android:ems="10"
android:id="@+id/textphone"
android:layout_gravity="center"
android:hint="Phone no"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp"
android:editable="false" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textEmailAddress"
android:ems="10"
android:id="@+id/textemail"
android:layout_gravity="center_horizontal"
android:hint="Email"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:id="@+id/textaddress"
android:layout_gravity="center_horizontal"
android:hint="Address"
android:focusableInTouchMode="true"
android:layout_marginTop="15dp"
android:inputType="textPostalAddress" />
<Button
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="Add Contact"
android:id="@+id/buttonadd"
android:layout_gravity="center"
android:layout_marginTop="15dp"
android:enabled="false" />
</LinearLayout>
<LinearLayout
android:id="@+id/tab2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"></LinearLayout>
</FrameLayout>
</LinearLayout>
</TabHost>
这是我的主要活动
package com.example.sayedshazeb.contact;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TabHost;
public class Contact_main extends ActionBarActivity {
EditText nametext,phonetext,emailtext,adresstext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact_main);
nametext = (EditText) findViewById(R.id.textname);
phonetext = (EditText) findViewById(R.id.textphone);
emailtext = (EditText) findViewById(R.id.textemail);
adresstext = (EditText) findViewById(R.id.textaddress);
TabHost tabHost = (TabHost)findViewById (R.id.tabhost);
tabHost.setup();
TabHost.TabSpec spec1 = tabHost.newTabSpec("Tab1");
spec1.setContent(R.id.tab1);
spec1.setIndicator("Contact");
TabHost.TabSpec spec2 = tabHost.newTabSpec("Tab2");
spec2.setContent(R.id.tab2);
spec2.setIndicator("List");
tabHost.addTab(spec1);
tabHost.addTab(spec2);
final Button addbtn = (Button) findViewById(R.id.buttonadd);
nametext.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
addbtn.setEnabled(!nametext.getText().toString().trim().isEmpty());
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
}
这是我的日志-
01-21 11:23:02.784 3064-3064/com.example.sayedshazeb.contact E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.sayedshazeb.contact, PID: 3064
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sayedshazeb.contact/com.example.sayedshazeb.contact.Contact_main}: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2237)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:212)
at android.app.ActivityThread.main(ActivityThread.java:5137)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:718)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: you must specify a way to create the tab indicator.
at android.widget.TabHost.addTab(TabHost.java:221)
at com.example.sayedshazeb.contact.Contact_main.onCreate(Contact_main.java:36)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:212)
at android.app.ActivityThread.main(ActivityThread.java:5137)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:718)
at dalvik.system.NativeStart.main(Native Method)
我不知道我做错了什么？为什么我的应用程序在添加选项卡后崩溃？
当您从 xml 绑定 TabHost 时，您似乎使用的是 android.R.id.tabhost 而不是 R.id.tabhost。没有一些 logcat 输出那是我最好的猜测。
祝你好运