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...
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package com.domo.touch;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnTouchListener;
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import android.widget.TextView;
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public class TestTouchActivity extends Activity {
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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TextView textView = (TextView) findViewById(R.id.textview);
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textView.setOnTouchListener(new OnTouchListener() {
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public boolean onTouch(View v, MotionEvent event) {
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// TODO Auto-generated method stub
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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return false;//注意：return false
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}
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});
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}
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@Override
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public boolean dispatchTouchEvent(MotionEvent ev) {
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// TODO Auto-generated method stub
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switch (ev.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
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return super.dispatchTouchEvent(ev);//注意
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}
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}
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
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public boolean dispatchTouchEvent(MotionEvent ev) {
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// TODO Auto-generated method stub
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switch (ev.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
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return false; //即这里改为False时
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}
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
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package com.domo.touch;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnTouchListener;
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import android.widget.TextView;
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public class TestTouchActivity extends Activity {
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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TextView textView = (TextView) findViewById(R.id.textview);
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textView.setOnTouchListener(new OnTouchListener() {
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public boolean onTouch(View v, MotionEvent event) {
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// TODO Auto-generated method stub
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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return false;
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}
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});
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}
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@Override
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public boolean dispatchTouchEvent(MotionEvent ev) {
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// TODO Auto-generated method stub
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switch (ev.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "Activity_dis: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "Activity_dis: ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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Log.v("TAG", "Activity_dis: " + super.dispatchTouchEvent(ev));
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return true;//注意
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {//在Activity中添加了onTouchEvent事件
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// TODO Auto-generated method stub
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "onTouchEvent: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "onTouchEvent: ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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Log.v("TAG", "onTouchEvent: " + super.onTouchEvent(event));
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return super.onTouchEvent(event);//注意
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}
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}
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
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textView.setOnTouchListener(new OnTouchListener() {
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public boolean onTouch(View v, MotionEvent event) {
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// TODO Auto-generated method stub
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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Log.v("TAG", "TextView: ACTION_DOWN" + MotionEvent.ACTION_DOWN);
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break;
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case MotionEvent.ACTION_UP:
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Log.v("TAG", "TextView : ACTION_UP" + MotionEvent.ACTION_UP);
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break;
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default:
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break;
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}
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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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