Android。调用系统对话框

Question

有没有办法以编程方式从我的应用程序打开系统对话框settings->location & security->Install from SD card？

Answer 1

通过以下代码至少启动安全设置。

public class MainActivity extends Activity { 

Button button; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    button = (Button) findViewById(R.id.button1); 

    button.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 

      final Intent intent = new Intent(Intent.ACTION_MAIN, null); 
      intent.addCategory(Intent.CATEGORY_LAUNCHER); 
      final ComponentName cn = new ComponentName(
        "com.android.settings", 
        "com.android.settings.SecuritySettings"); 
      intent.setComponent(cn); 
      intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
      startActivity(intent); 
     } 
    }); 
}