我有以下XML佈局:與setOnClickListener()有麻煩
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:background="#ffffff" android:layout_height="fill_parent">
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content" android:orientation="vertical"
android:layout_gravity="center">
<TextView android:text="Title1" android:id="@+id/title1"
android:padding="5dip" android:background="#005555"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<LinearLayout android:id="@+id/panel1"
android:visibility="gone" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:layout_margin="2dip" android:text="Item1"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item2"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item3"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
<LinearLayout android:layout_marginTop="2dip"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:layout_gravity="center">
<TextView android:text="Title2" android:id="@+id/title2"
android:padding="5dip" android:background="#005555"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<LinearLayout android:id="@+id/panel2"
android:visibility="gone" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:layout_margin="2dip" android:text="Item1"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item2"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item3"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
<LinearLayout android:layout_marginTop="2dip"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:layout_gravity="center">
<TextView android:text="Title3" android:id="@+id/title3"
android:padding="5dip" android:background="#005555"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<LinearLayout android:id="@+id/panel3"
android:visibility="gone" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:layout_margin="2dip" android:text="Item1"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item2"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<TextView android:layout_margin="2dip" android:text="Item3"
android:padding="5dip" android:background="#777777"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
而且我想設置TextViews「TITLE1」,「標題2」和「TITLE3」點擊收聽,通過雖然循環並找到相應的兒童觀:
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MyActivity extends Activity implements View.OnClickListener {
private static final String TAG = "MyActivity";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mPanelWrappers = new ArrayList<LinearLayout>();
LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ViewGroup rootLayout = (ViewGroup)inflater.inflate(R.layout.main, null);
for(int i = 0; i < rootLayout.getChildCount(); i++) {
View rootChild = rootLayout.getChildAt(i);
if(rootChild instanceof LinearLayout) {
LinearLayout panelWrapper = (LinearLayout)rootChild;
mPanelWrappers.add(panelWrapper);
for(int j = 0; j < panelWrapper.getChildCount(); j++) {
View wrapperChild = panelWrapper.getChildAt(j);
if(wrapperChild instanceof TextView) {
Log.d(TAG, "Setting on-click listener for " + wrapperChild.getId());
if(wrapperChild == findViewById(R.id.title1)) {
Log.d(TAG, "Found title1");
} else {
Log.d(TAG, "Not title1");
}
wrapperChild.setOnClickListener(this);
}
break;
}
}
}
}
@Override
public void onClick(View panelTitle) {
Log.d(TAG, "On click");
}
private ArrayList<LinearLayout> mPanelWrappers;
}
出於某種原因的onClick不會被解僱,我意識到,wrapperChild是永遠等於findViewById(R.id.title1)。有任何想法嗎?
你爲什麼這樣做?你爲什麼不使用'findViewById(...)'? – Squonk
@MisterSquonk:我想動態地設置點擊處理程序,而不必爲儘可能多的視圖鍵入findViewById,這可能會很多。 – Phillip
已回答:http://stackoverflow.com/questions/7394560/why-dont-inflated-views-respond-to-click-listeners – Phillip