线性布局不可见 OnClickListener

Question

我有两种布局。我想在加载 activity 时保留一个布局，它应该在另一个布局的 onClick 上可见。所以我在布局中添加了这段代码 OnClickListener。

 additionalContactFrom.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            if(linearLayoutFrom.getVisibility() == View.GONE){

                linearLayoutFrom.setVisibility(View.VISIBLE);

            }else{
                linearLayoutFrom.setVisibility(View.GONE);

            }
        }
    });

并设置了 xml 文件中布局的可见性..

<LinearLayout
                android:orientation="horizontal"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/LinearLayoutAdditionalContactFrom">

                <ImageView
                    android:layout_width="25dp"
                    android:layout_height="25dp"
                    android:id="@+id/imageView13"
                    android:layout_marginLeft="20dp"
                    android:background="@drawable/ic_person_black_48dp"
                    android:layout_marginTop="05dp"
                    />

                <EditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/editText"
                    android:layout_marginRight="10dp"
                    android:drawableRight="@drawable/ic_expand_more_black_24dp"
                    android:text="Additional contact (optional)"
                    android:cursorVisible="false"
                    />
            </LinearLayout>
                <LinearLayout
                    android:orientation="vertical"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="60dp"
                    android:layout_marginRight="50dp"
                    android:layout_gravity="center"
                    android:visibility="gone"
                    android:id="@+id/LinearLayoutFrom">

                    <EditText
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:id="@+id/editText2"
                        android:layout_weight="1"
                        android:hint="Name"
                        android:layout_gravity="center"
                        />

                    <EditText
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:id="@+id/editText3"
                        android:layout_weight="1"
                        android:hint="Phone"
                        android:layout_gravity="center"
                       />

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:textAppearance="?android:attr/textAppearanceSmall"
                        android:text="OR"
                        android:id="@+id/textView19"
                        android:layout_gravity="center" />

            </LinearLayout>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:id="@+id/textView13"
                android:layout_marginLeft="48dp"
                android:hint="Input if you're not receiver" />

        </LinearLayout>

无法理解出了什么问题..根本没有调用侦听器..请帮忙..

Answer 1

改变

linearLayoutFrom.setVisibility(View.VISIBLE);

到

findViewById(R.id.YOURLAYOUTID).setVisibility(View.VISIBLE);

我认为您无法在子方法中访问本地变量

Answer 2

Layout Visibility 似乎已经设置为 GONE，因此 Onlick 侦听器在隐藏视图上不起作用，它也不应该起作用。

INVISBLE 表示您正在尝试向不存在的视图添加侦听器。您只能将侦听器添加到可见视图。

解决方法

1) Try to make a dummy view which is visible but having the same color as background.

2) Try to set the listener for parent and check the position (whether the position does belongs to INVISIBLE view).

Answer 3

您的问题是您的 EditText 在您单击它时捕获了单击事件。如果您单击 LinearLayout 中的其他位置，它应该可以工作。如果您不需要用户编辑内容，您可以将 EditText 替换为 TextView。

Answer 4

请尝试将 onClickListener 设置为 EditText 和 ImageView，而不是 LinearLayout

问题是 EditText 的处理程序比 LinearLayout 处理程序最重要。

差不多你可以尝试在OnClick上打个断点看看会发生什么

Answer 5

这是一个向您解释如何执行此操作的示例：在 MainActivity Class:

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;

public class MainActivity extends Activity {

    private LinearLayout linearLayoutFrom;
    private LinearLayout additionalContactFrom;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        additionalContactFrom = (LinearLayout) findViewById(R.id.LinearLayoutAdditionalContactFrom);
        linearLayoutFrom = (LinearLayout) findViewById(R.id.LinearLayoutFrom);

        linearLayoutFrom.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(),
                        "linearLayoutFrom clicked!!!", Toast.LENGTH_SHORT)
                        .show();
                if (additionalContactFrom.getVisibility() == View.GONE) {

                    additionalContactFrom.setVisibility(View.VISIBLE);

                } else {
                    additionalContactFrom.setVisibility(View.GONE);

                }
            }
        });

        additionalContactFrom.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(),
                        "additionalContactFrom clicked!!!", Toast.LENGTH_SHORT)
                        .show();

                if (linearLayoutFrom.getVisibility() == View.GONE) {

                    linearLayoutFrom.setVisibility(View.VISIBLE);

                } else {

                    linearLayoutFrom.setVisibility(View.GONE);

                }
            }
        });
    }

}

在 xml 文件中：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/LinearLayoutAdditionalContactFrom"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/holo_blue_dark"
        android:orientation="horizontal" >
    </LinearLayout>

    <LinearLayout
        android:id="@+id/LinearLayoutFrom"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:layout_marginLeft="60dp"
        android:layout_marginRight="50dp"
        android:background="@android:color/holo_green_light"
        android:orientation="vertical"
        android:visibility="gone" >
    </LinearLayout>

    <TextView
        android:id="@+id/textView13"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="48dp"
        android:hint="Input if you&apos;re not receiver"
        android:textAppearance="?android:attr/textAppearanceSmall" />

</FrameLayout>

This is very important that when you want add some view (for example add a linearlayout to another linerlayout). you should use framelayout or relativelayout(do not use linearlayout) for do that.

线性布局不可见 OnClickListener

Linear layout not getting visible OnClickListener

java

android

android-linearlayout

onclicklistener

visible