由网友(等你@我)分享简介:在Android的文件中,它提到支持悬停事件,因为4.0(即API级别14以上)。但不知何故,这是行不通的。即使我尝试了样品code在ApiDemo,这与Android的样品,但没有奏效。我当前设备的是Android 4.0.4。我应该升级到4.2.2?样品code是什么如下。你有没有一个解决方案呢?非常感谢。...
在Android的文件中,它提到支持悬停事件,因为4.0(即API级别14以上)。但不知何故,这是行不通的。即使我尝试了样品code在ApiDemo,这与Android的样品,但没有奏效。 我当前设备的是Android 4.0.4。我应该升级到4.2.2?
样品code是什么如下。 你有没有一个解决方案呢?非常感谢。
code:
View容器= findViewById(R.id.container);
container.setOnHoverListener(新View.OnHoverListener(){
@覆盖
公共布尔onHover(视图V,MotionEvent事件){
开关(event.getAction()){
案例MotionEvent.ACTION_HOVER_ENTER:
mMessageTextView.setText(Hover.this.getResources()的getString(
R.string.hover_message_entered_at,
event.getX(),event.getY()));
打破;
案例MotionEvent.ACTION_HOVER_MOVE:
mMessageTextView.setText(Hover.this.getResources()的getString(
R.string.hover_message_moved_at,
event.getX(),event.getY()));
打破;
案例MotionEvent.ACTION_HOVER_EXIT:
mMessageTextView.setText(Hover.this.getResources()的getString(
R.string.hover_message_exited_at,
event.getX(),event.getY()));
打破;
}
返回false;
}
});
解决方案
悬停需要从硬件支持。可能支持它的唯一的事情就是一个手写笔。它不会只用你的手指工作。
In android document, it mentions supporting the "hover" event since 4.0 (ie. API level 14 and up). But somehow, it doesn't work. Even I tried out the sample code in ApiDemo, which is from Android Sample, it didn't work. My current device is Android 4.0.4. Should I upgrade it to 4.2.2?
Sample code is something as below. Did you have a solution to it? Thanks a lot.
Code:
View container = findViewById(R.id.container);
container.setOnHoverListener(new View.OnHoverListener() {
@Override
public boolean onHover(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_HOVER_ENTER:
mMessageTextView.setText(Hover.this.getResources().getString(
R.string.hover_message_entered_at,
event.getX(), event.getY()));
break;
case MotionEvent.ACTION_HOVER_MOVE:
mMessageTextView.setText(Hover.this.getResources().getString(
R.string.hover_message_moved_at,
event.getX(), event.getY()));
break;
case MotionEvent.ACTION_HOVER_EXIT:
mMessageTextView.setText(Hover.this.getResources().getString(
R.string.hover_message_exited_at,
event.getX(), event.getY()));
break;
}
return false;
}
});
解决方案
Hovering requires support from the hardware. The only thing likely to support it is a stylus. It won't work with just your finger.
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