我遇到了一个按钮点击事件和搜索栏事件无法触发的问题。当我在搜索条上拖动时,滑块在视觉上改变了位置,但在我的OnSeekBarChangedListener
中没有事件被触发。我也有一个应该接收点击事件的ImageButton
,但它也不会触发。底部的MyView可以正确处理触摸事件。它有一个GLSurfaceView
,我可以在上面平移和缩放。是什么原因导致事件无法触发?
这是我的布局:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/tec_root">
<ImageButton
android:id="@+id/button_star"
android:contentDescription="@string/star_description"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginTop="16dp"
android:layout_marginRight="16dp"
android:layout_marginEnd="16dp"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:src="@drawable/star_empty"
android:background="#00000000"
android:scaleType="fitXY"/>
<LinearLayout
android:id="@+id/view_plot"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="@id/button_star"/>
<SeekBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/button_star"
android:layout_toStartOf="@id/button_star"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:progress="50"
android:layout_alignBaseline="@id/button_star"
android:id="@+id/seekbar" />
</RelativeLayout>
下面是监听者:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_activity);
prefs = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
starred = prefs.getBoolean("starred", false);
final ImageButton starButton = (ImageButton) findViewById(R.id.button_star);
starButton.setImageDrawable(ContextCompat.getDrawable(this, (starred ? R.drawable.star_filled :
R.drawable.star_empty)));
starButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
starred = !starred;
prefsEditor = prefs.edit();
prefsEditor.putBoolean("starred", starred);
prefsEditor.apply();
starButton.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(),
(starred ? R.drawable.star_filled : R.drawable.star_empty)));
}
});
((SeekBar) findViewById(R.id.seekbar)).setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
Log.e("TEST", "Seekbar onProgressChanged called");
Toast.makeText(getApplicationContext(), "Seekbar fired", Toast.LENGTH_SHORT).show();
// respond to update
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
MyView myView = new MyView(this, points, false);
((LinearLayout) findViewById(R.id.view_plot)).addView(myView);
}
发布于 2015-07-21 15:56:59
试试这个,用FrameLayout替换LinearLayout,它在性能上不是最好的,但工作得很好
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tec_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<SeekBar
android:id="@+id/seekbar"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:background="#ABABAB"
android:layout_weight="1"
android:progress="50" />
<ImageButton
android:id="@+id/button_star"
android:layout_width="32dp"
android:layout_height="32dp"
android:background="#00000000"
android:contentDescription="@string/star_description"
android:scaleType="fitXY"
android:src="@drawable/star_empty" />
</LinearLayout>
<FrameLayout
android:id="@+id/view_plot"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1"
/>
</LinearLayout>
发布于 2015-07-21 15:36:08
尝试将您的代码更改为:
MyView myView = new MyView(this, points, false);
myView.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
((LinearLayout) findViewById(R.id.view_plot)).addView(myView);
发布于 2015-07-24 16:29:29
这可以通过移除GLSurfaceView来重现吗?
如果是这样,更改SurfaceView.setZOrderOnTop
可能会有所帮助。http://developer.android.com/reference/android/view/SurfaceView.html#setZOrderOnTop(boolean)
https://stackoverflow.com/questions/31458849
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