ListView

Question

我的 ListView 被这个填充了

<LinearLayout
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center">

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <ImageView
            android:layout_width="70dp"
            android:layout_height="70dp"
            android:id="@+id/projectImage"
            android:maxHeight="70dp"
            android:maxWidth="70dp"
            android:adjustViewBounds="true"
            android:minHeight="50dp"
            android:minWidth="50dp"
            android:layout_alignParentStart="true"
            android:layout_centerVertical="true"
            android:layout_marginLeft="10dp" />

        <LinearLayout
            android:orientation="horizontal"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content">

            <LinearLayout
                android:orientation="vertical"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="90dp">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceMedium"
                    android:id="@+id/projectTitle"
                    android:textStyle="bold"
                    android:focusable="false"
                    android:clickable="false"
                    android:textSize="15dp"
                    android:text="projecttitle" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceSmall"
                    android:id="@+id/projectTopic"
                    android:focusable="false"
                    android:clickable="false"
                    android:textSize="14sp"
                    android:text="projectTopic"
                    android:layout_marginTop="3dp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceSmall"
                    android:id="@+id/projectdeadline"
                    android:textSize="14sp"
                    android:text="projectdeadline"
                    android:layout_marginTop="3dp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceSmall"
                    android:text="projectTaskCount"
                    android:id="@+id/projectTaskCount"
                    android:layout_marginTop="3dp" />

            </LinearLayout>

        </LinearLayout>

    </RelativeLayout>

</LinearLayout>

它包含一个ImageView和三个TextView。如果我点击 ImageView 我想开始我的 Activity Example1，否则打开下一个 Activity WiFi。

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

    Intent in = new Intent(this, WiFi.class);

    in.putExtra("projectFileNamesMap", projectFileNamesMap.get(position));
    in.putExtra("position", position);
    in.putExtra("sessionId", sessionId);
    startActivity(in);

}

如何解决我的问题？

总结：如果我点击 ImageView 打开 Example1 Activity。如果点击其他地方，则打开 WiFi Activity.

希望大家能够理解。

亲切的问候！

Answer 1

在 getView 方法中使用 image.setOnclickListener 和 view.setOnItemCLickListener 来执行单击图像视图和整个视图。

Answer 2

首先设置你的图片：

android:clickable="true" //setOnClickListener makes a view clickable if it doesn't have that as a default but use it anyway.

然后：

imgView.setOnClickListener(new View.OnClickListener() {
   //@Override
   public void onClick(View v) {
      Log.v(TAG, " click");         
   }        
});

请告诉我这是否有效

Answer 3

在 Adapter 的 getView 方法中为 listView 的每个 ImageView 元素创建一个新的 Instance 时为 ImageView 写 OnClickListener

还要确保在将视图添加到线性布局之前设置适当的 LayoutParams。

public View getView(final int position, View convertView, ViewGroup parent) {
        TextView txtOne, txtTwo, txtThree;
        ImageView iv;
        LinearLayout layout;

        if(convertView == null){
            layout = new LinearLayout(context);
            txtOne = new TextView(context);
            txtTwo = new TextView(context);
            txtThree = new TextView(context);
            iv = new ImageView(context);
        } else{
            layout = (LinearLayout) convertView;
            txtOne = (TextView) layout.getChildAt(0);
            txtTwo = (TextView) layout.getChildAt(0);
            txtThree = (TextView) layout.getChildAt(0);
            iv = (ImageView) layout.getChildAt(0);
        }
        layout.addView(txtOne);
        layout.addView(txtTwo);
        layout.addView(txtThree);
        layout.addView(iv);

        iv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //Do your handling here
            }
        });

}

ListView - 如果单击 ImageView，则启动 activity

ListView - Start activity if clicked on ImageView

android

android-layout

android-listview