android onclick onLongClick ontouch dispatchTouchEvent onInterceptTouchEvent 按ACTION_DOWN -> onLongClick -> ACTION_UP -> onClick的次序发生的 onTouchevent() vs onTouch() onTouch() is used by users of the View to get touch events while onTouchEvent() is…
/** Called when the user clicks the Send button */public void sendMessage(View view) { // Do something in response to button} In order for the system to match this method to the method name given to android:onClick, the signature must be exactly a…
package a.a; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class AActivity extends Activity { /** Called when the activity is first created. */ Ed…
package a.a; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class AActivity extends Activity { /** Called when the activity is first created. */ Ed…
ViewAnimationUtils.createCircularReveal()的简介: ViewAnimationUtils.createCircularReveal()是安卓5.0才引入的,快速实现圆形缩放动画的api,效果如下图所示: 如果要在你的程序中使用它,必须要设置最低的 api 版本是 21,往下版本的,在运行程序的时候就会抛出 .createCircularReveal() not found 异常.其源码如下: public static Animator createCir…