Android，全屏全局方法

Question

，所以我想使这3行作为来自应用程序中每个活动的函数可用。我试图用这3行进行一个简单的myMethods课，但我没有工作(无法解决方法(

package com.example.myapplication;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
public static final String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
@Override
protected void onCreate(Bundle savedInstanceState) {
    //landscape,fullscreen,no action bar
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
    //I want those 3 lines above to be one void function 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

}

public void sendMessage(View view){
    Intent intent = new Intent(this, DisplayMessageActivity.class);
    EditText editText = (EditText) findViewById(R.id.editText);
    String message = editText.getText().toString();
    intent.putExtra(EXTRA_MESSAGE, message);
    startActivity(intent);
}

}

Answer 1

尝试这种方式，

 public class MyMethods extends AppCompatActivity  
 {
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        super.onCreate(savedInstanceState); 
    }
  }

现在 extends 在您的 MainActivity class

中

public class MainActivity extends MyMethods {

Answer 2

如果您是通过Java代码执行的，则不会推荐。Bettwer使您的活动全屏的方法是通过活动主题进行。

<style name="Theme.AppCompat.Light.NoActionBar.FullScreen" parent="@style/Theme.AppCompat.Light">
    <item name="windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
    <item name="android:windowFullscreen">true</item>
    <item name="android:windowContentOverlay">@null</item>
</style>

并将其提供给您想要全屏的所有活动。

<activity
   android:name=".activities.MyFullScreenActivity"
   android:theme="@style/Theme.AppCompat.Light.NoActionBar.FullScreen" 
/>

希望它能起作用...：(