<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="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:textStyle="bold"
android:padding="15dp"
/>
</LinearLayout>
这是我想要创建的自定义布局xml文件。
这是我的代码 MainActivity.java:
package com.example.nabil.listviewexample;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String [] TVShows = {"Breaking Bad", "Friends", "Sons of Anarchy", "Pushing Daisies",
"Life on Mars", "Walking Dead", "Game of Thrones"};
ListAdapter adapter = new ArrayAdapter<String>(this, R.layout.row_layout ,TVShows);
ListView listView1 = (ListView) findViewById(R.id.listView1);
listView1.setAdapter(adapter);
listView1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String tvShowPicked = "You Selected " + String.valueOf(parent.getItemAtPosition(position));
Toast.makeText(MainActivity.this, tvShowPicked, Toast.LENGTH_SHORT).show();
}
});
}
@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_main, 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);
}
}
但是每当我试图进入我的星系s4时,它说不幸的是应用已停止了。我还是新手,我希望这不是一个大问题。谢谢!
我的logcat屏幕截图:
答案 0 :(得分:0)
如果你的XML-Layout文件应该是列表行的布局,那么当你的堆栈跟踪告诉你,你有一个LinearLayout,你应该只有一个TextView。 ArrayAdapter只接受一个TextView作为布局,因为它是显示内容的地方。
这应该是你的row_layout.xml:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:textStyle="bold"
android:padding="15dp" />