执行我的应用程序后，我一直在模拟器中收到此错误。如果有人能通读这篇文章并在这里帮助我，那就太棒了。如有错误请指出。
我的 activity_fullscreen.xml
<RelativeLayout 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:layout_gravity="bottom"
android:animateLayoutChanges="true"
android:background="#000000"
android:onClick="hideSoftKeyboard"
tools:context=".FullscreenActivity" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="412dp"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:fitsSystemWindows="true"
android:orientation="vertical" >
</LinearLayout>
<Button
android:id="@+id/button"
android:layout_width="231dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="93dp"
android:text="Search" />
<EditText
android:id="@+id/fullscreen_content"
android:layout_width="311dp"
android:layout_height="73dp"
android:layout_above="@+id/button"
android:layout_centerHorizontal="true"
android:layout_marginBottom="21dp"
android:ems="8"
android:imeOptions="actionSearch"
android:inputType="textCapWords"
android:textColor="#FFFFFF"
android:textSize="20sp"
android:textStyle="bold|normal" />
我的 FullscreenActivity.java
public class FullscreenActivity extends Activity {
Button mButton; //Button
EditText mEdit; //Text box
String query;
View lLayout; //LinearLayout
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fullscreen);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, //Code for full screen activity
WindowManager.LayoutParams.FLAG_FULLSCREEN);
mButton = (Button)findViewById(R.id.button);
mEdit = (EditText)findViewById(R.id.fullscreen_content);
lLayout = (View)findViewById(R.id.linearLayout1);
mButton.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
query=mEdit.getText().toString();
Intent res=new Intent(FullscreenActivity.this,ResultActivity.class);
startActivity(res);
}
});
lLayout.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
hideSoftKeyboard();
}
});
}
private void hideSoftKeyboard(){
if(getCurrentFocus()!=null && getCurrentFocus() instanceof EditText){
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
View yourEditTextHere =(View)findViewById(R.id.fullscreen_content);
imm.hideSoftInputFromWindow(yourEditTextHere.getWindowToken(), 0);
}
}
}
我的日志：
06-13 13:58:50.291: E/Trace(669): error opening trace file: No such file or directory (2)
06-13 13:58:51.611: D/AndroidRuntime(669): Shutting down VM
06-13 13:58:51.611: W/dalvikvm(669): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
06-13 13:58:51.641: E/AndroidRuntime(669): FATAL EXCEPTION: main
06-13 13:58:51.641: E/AndroidRuntime(669): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.vearch/com.example.vearch.FullscreenActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread.access$600(ActivityThread.java:130)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.os.Handler.dispatchMessage(Handler.java:99)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.os.Looper.loop(Looper.java:137)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread.main(ActivityThread.java:4745)
06-13 13:58:51.641: E/AndroidRuntime(669): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 13:58:51.641: E/AndroidRuntime(669): at java.lang.reflect.Method.invoke(Method.java:511)
06-13 13:58:51.641: E/AndroidRuntime(669): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
06-13 13:58:51.641: E/AndroidRuntime(669): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
06-13 13:58:51.641: E/AndroidRuntime(669): at dalvik.system.NativeStart.main(Native Method)
06-13 13:58:51.641: E/AndroidRuntime(669): Caused by: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
06-13 13:58:51.641: E/AndroidRuntime(669): at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:215)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.Activity.requestWindowFeature(Activity.java:3225)
06-13 13:58:51.641: E/AndroidRuntime(669): at com.example.vearch.FullscreenActivity.onCreate(FullscreenActivity.java:27)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.Activity.performCreate(Activity.java:5008)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
06-13 13:58:51.641: E/AndroidRuntime(669): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
06-13 13:58:51.641: E/AndroidRuntime(669): ... 11 more