當我正要後我回答我發現有人已經得到了某種解決方案....
但這裏是我的,簡單而且像魅力一樣工作。只有一個標誌;)
這段代碼檢測shortpress和longpress,當longpress發生時,不會觸發shortpress!
注:如果你想正常的音量上下行爲更改onkeypress事件的方法超級調用像這樣的還真:
event.startTracking();
if(event.getRepeatCount() == 0){
shortPress = true;
}
//return true;
return super.onKeyDown(keyCode, event);
代碼,而超級電話:
private boolean shortPress = false;
@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
shortPress = false;
Toast.makeText(this, "longPress", Toast.LENGTH_LONG).show();
return true;
}
//Just return false because the super call does always the same (returning false)
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
if(event.getAction() == KeyEvent.ACTION_DOWN){
event.startTracking();
if(event.getRepeatCount() == 0){
shortPress = true;
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
if(shortPress){
Toast.makeText(this, "shortPress", Toast.LENGTH_LONG).show();
} else {
//Don't handle longpress here, because the user will have to get his finger back up first
}
shortPress = false;
return true;
}
return super.onKeyUp(keyCode, event);
}
到這裏
代碼與音量向上加,只挑選自己側鍵;)
private boolean shortPress = false;
@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
shortPress = false;
Toast.makeText(this, "longPress Volume Down", Toast.LENGTH_LONG).show();
return true;
} else if(keyCode == KeyEvent.KEYCODE_VOLUME_UP){
shortPress = false;
Toast.makeText(this, "longPress Volume Up", Toast.LENGTH_LONG).show();
return true;
}
//Just return false because the super call does always the same (returning false)
return false;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
if(event.getAction() == KeyEvent.ACTION_DOWN){
event.startTracking();
if(event.getRepeatCount() == 0){
shortPress = true;
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
if(shortPress){
Toast.makeText(this, "shortPress Volume Down", Toast.LENGTH_LONG).show();
} else {
//Don't handle longpress here, because the user will have to get his finger back up first
}
shortPress = false;
return true;
} else if(keyCode == KeyEvent.KEYCODE_VOLUME_UP){
if(shortPress){
Toast.makeText(this, "shortPress Volume up", Toast.LENGTH_LONG).show();
} else {
//Don't handle longpress here, because the user will have to get his finger back up first
}
shortPress = false;
return true;
}
return super.onKeyUp(keyCode, event);
}
然後嘗試使用鍵(KeyEvent.KEYCODE_VOLUME_UP)而不是keydown;如果長時間按鍵會在按鍵之前調用,如果長時間按下使用標誌在按鍵上停止動作 – Sandy09
這是音量增大鍵,而不是一個指示器,告訴你鍵被按下或類似的東西。 –
我現在正在嘗試的東西 –