Actvity中TextView的Touch事件
【摘要】
package com.domo.touch; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.MotionEvent; import android.view.View; i...
package com.domo.touch;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;
public class TestTouchActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView textView = (TextView) findViewById(R.id.textview);
textView.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
return false;//注意：return false
}
});
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
return super.dispatchTouchEvent(ev);//注意
}
}
当dispatchTouchEvent的返回值为super.dispatchTouchEvent(ev)时，获取到super.dispatchTouchEvent(ev)为False；点击Textview的显示的结果为
04-28 01:09:32.978: V/TAG(5733): Activity_dis: ACTION_DOWN0
04-28 01:09:32.978: V/TAG(5733): TextView: ACTION_DOWN0
04-28 01:09:32.978: V/TAG(5733): Activity_dis: false
04-28 01:09:32.978: V/TAG(5733): TextView: ACTION_DOWN0 //TextView只能获取到Down事件
04-28 01:09:33.068: V/TAG(5733): Activity_dis: false
04-28 01:09:33.088: V/TAG(5733): Activity_dis: ACTION_UP1
04-28 01:09:33.088: V/TAG(5733): Activity_dis: false
public boolean dispatchTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
return false; //即这里改为False时
}
1 04-28 01:14:25.467: V/TAG(5884): Activity_dis: ACTION_DOWN0
2 04-28 01:14:25.467: V/TAG(5884): TextView: ACTION_DOWN0 //只能获取到一次Down事件
3 04-28 01:14:25.467: V/TAG(5884): Activity_dis: false
4 04-28 01:14:25.571: V/TAG(5884): Activity_dis: ACTION_UP1
5 04-28 01:14:25.571: V/TAG(5884): Activity_dis: false1 04-28 01:17:00.398: V/TAG(5995): Activity_dis: ACTION_DOWN0
2 04-28 01:17:00.398: V/TAG(5995): TextView: ACTION_DOWN0 // 效果没见发生变化
3 04-28 01:17:00.398: V/TAG(5995): Activity_dis: false
4 04-28 01:17:00.418: V/TAG(5995): Activity_dis: ACTION_UP1
5 04-28 01:17:00.418: V/TAG(5995): Activity_dis: false
package com.domo.touch;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.TextView;
public class TestTouchActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView textView = (TextView) findViewById(R.id.textview);
textView.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
return false;
}
});
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
// TODO Auto-generated method stub
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
return true;//注意
}
@Override
public boolean onTouchEvent(MotionEvent event) {//在Activity中添加了onTouchEvent事件
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "onTouchEvent: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "onTouchEvent: ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
Log.v("TAG", "onTouchEvent: " + super.onTouchEvent(event));
return super.onTouchEvent(event);//注意
}
}
04-28 01:22:11.957: V/TAG(6152): Activity_dis: ACTION_DOWN0
04-28 01:22:11.957: V/TAG(6152): TextView: ACTION_DOWN0 //还是只有一次
04-28 01:22:11.957: V/TAG(6152): onTouchEvent: ACTION_DOWN0
04-28 01:22:11.957: V/TAG(6152): onTouchEvent: false
04-28 01:22:11.957: V/TAG(6152): Activity_dis: false
04-28 01:22:12.047: V/TAG(6152): Activity_dis: ACTION_UP1
04-28 01:22:12.047: V/TAG(6152): onTouchEvent: ACTION_UP1
04-28 01:22:12.058: V/TAG(6152): onTouchEvent: false
04-28 01:22:12.058: V/TAG(6152): Activity_dis: false04-28 01:25:17.378: V/TAG(6152): Activity_dis: ACTION_DOWN0
04-28 01:25:17.378: V/TAG(6152): TextView: ACTION_DOWN0 //依然只有一次
04-28 01:25:17.378: V/TAG(6152): onTouchEvent: ACTION_DOWN0
04-28 01:25:17.378: V/TAG(6152): onTouchEvent: false
04-28 01:25:17.378: V/TAG(6152): Activity_dis: false
04-28 01:25:17.468: V/TAG(6152): Activity_dis: ACTION_UP1
04-28 01:25:17.468: V/TAG(6152): onTouchEvent: ACTION_UP1
04-28 01:25:17.468: V/TAG(6152): onTouchEvent: false
04-28 01:25:17.468: V/TAG(6152): Activity_dis: false04-28 01:27:16.178: V/TAG(6304): Activity_dis: ACTION_DOWN0
04-28 01:27:16.178: V/TAG(6304): TextView: ACTION_DOWN0 //依然只有一次
04-28 01:27:16.178: V/TAG(6304): onTouchEvent: ACTION_DOWN0
04-28 01:27:16.178: V/TAG(6304): onTouchEvent: false
04-28 01:27:16.178: V/TAG(6304): Activity_dis: false
04-28 01:27:16.298: V/TAG(6304): Activity_dis: ACTION_UP1
04-28 01:27:16.298: V/TAG(6304): onTouchEvent: ACTION_UP1
04-28 01:27:16.298: V/TAG(6304): onTouchEvent: false
04-28 01:27:16.298: V/TAG(6304): Activity_dis: false
textView.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
break;
case MotionEvent.ACTION_UP:
Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
break;
default:
break;
}
return true; //注意
04-28 01:36:26.057: V/TAG(6628): Activity_dis: ACTION_DOWN0
04-28 01:36:26.057: V/TAG(6628): TextView: ACTION_DOWN0
04-28 01:36:26.057: V/TAG(6628): Activity_dis: true
04-28 01:36:26.148: V/TAG(6628): Activity_dis: ACTION_UP1
04-28 01:36:26.148: V/TAG(6628): TextView : ACTION_UP1//监听成功
04-28 01:36:26.148: V/TAG(6628): Activity_dis: true
文章来源: panda1234lee.blog.csdn.net，作者：panda1234lee，版权归原作者所有，如需转载，请联系作者。
原文链接：panda1234lee.blog.csdn.net/article/details/8742633
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