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android:我想让手机响铃并显示联系人信息(就像真正的电话一样)。当用户点击音量提高键3次,并保持在第三次点击。我希望即使在锁定屏幕的情况下也是如此。这可能吗?Android:手机在点击音量键模式后响铃
谢谢!
我做了这个改变,我试图在我的星系s6上运行,并且应用程序崩溃。它会运行,但只要它打开它崩溃。 这里是代码
package example.org.getaway;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
public class MainActivity extends AppCompatActivity {
static int number_of_times_volume_button_pressed = 0;
final MediaPlayer iphonering = MediaPlayer.create(this, R.raw.iphone);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
final MediaPlayer iphonering = MediaPlayer.create(this, R.raw.iphone);
if ((keyCode == KeyEvent.KEYCODE_VOLUME_DOWN)){
if(number_of_times_volume_button_pressed==3)
{
iphonering.start();
number_of_times_volume_button_pressed=0;
}else
{
number_of_times_volume_button_pressed++;
}
}
return true;
}
}
你可以请张贴在运行应用程序,你所得到的错误。 –