第一种点击事件
在xml中设置onclick属性
android:onClick="myOnclick"
第二种;获取Button然后一个一个单独绑定点击事件
http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
< android:id="@+id/btn_imgBtn"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:onClick="myOnclick"
android:text="imageButton"
/>
android:layout_width="fill_parent" android:layout_height="wrap_content" android:onClick="myOnclick" android:text="imageView" /> public class MainActivity extends ActionBarActivity { private Button btnImageBtn; private Button btnImageView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnImageBtn = (Button) findViewById(R.id.btn_imgBtn); btnImageView = (Button) findViewById(R.id.btn_imgView); btnImageBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(MainActivity.this, "点击ImageButton", Toast.LENGTH_SHORT).show(); } }); btnImageView.setOnClickListener(new MyListener()); } 第三种:写一个类(MyListener)实现OnClickListener接口,然后Button在设置onclickListener的时候new一个MyListener btnImageView.setOnClickListener(new MyListener()); class MyListener implements OnClickListener{ @Override public void onClick(View view) { switch (view.getId()) { case R.id.btn_imgBtn: Toast.makeText(MainActivity.this, "点击ImageButton", Toast.LENGTH_SHORT).show(); break; case R.id.btn_imgView: Toast.makeText(MainActivity.this, "点击imageView", Toast.LENGTH_SHORT).show(); break; } 第四种:整个类(MianActivity)实现onclickListener的接口 跳转界面 Intent:意图,用于访问android中的组件 用Intent跳转界面(activity) 第一步:new一个Intent() Intent intent1 = new Intent(MainActivity.this,ImageButtonActivity.class); startActivity(intent1); public void myOnclick(View view){ switch (view.getId()) { case R.id.btn_imgBtn: Intent intent1 = new Intent(MainActivity.this,ImageButtonActivity.class); startActivity(intent1); break; case R.id.btn_imgView: Intent intent2 = new Intent(MainActivity.this,ImageViewActivity.class); startActivity(intent2); break; Intent intent = new Intent(当前的activity,跳转到的acticvity.class); startActivity(intent); 3.ImageView 展示方式:scaleType: 4.ImageButton: 触摸事件:当控件或者屏幕呗触摸的时候,产生的反应 public boolean onTouchEvent(MotionEvent event) { } imageButton:现在已经呗button代替,用于展示图片的按钮。不能显示文字。 imageView scaleType:图片展示的方式 fitStart:展示在控件的上方 fitCenter:展示在控件的中间 fitEnd;展示在控件的下方 fitXY:不按照比例拉伸 matrix:矩阵模式 matrix可以设置图片旋转,缩放。移动 获取图片的高度和宽度 int h = imgView.getDrawable().getIntrinsicHeight(); int w = imgView.getDrawable().getIntrinsicWidth(); Matrix m = new Matrix(); m.postRotate(45); m.postRotate(45, w/2, h/2); imgView.setImageMatrix(m); 移动事件: 按下:MotionEvent.ACTION_DOWN 抬起:MotionEvent.ACTION_UP 移动:MotionEvent.ACTION_MOVE 获取当前的移动事件, event.getAction() http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > android:id="@+id/img_01" android:layout_width="fill_parent" android:layout_height="fill_parent" android:src="@drawable/ss" android:scaleType="fitXY"/> android:id="@+id/img_02" android:layout_width="fill_parent" android:layout_height="fill_parent" android:src="@drawable/gl" android:visibility="gone" android:scaleType="fitXY"/> android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/bird" android:layout_gravity="center" /> android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="20sp" android:textColor="#ff0000" android:gravity="center" android:text="小鸟飞"/> public class MainActivity extends Activity { private ImageView img01; private ImageView img02; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); img01 = (ImageView) findViewById(R.id.img_01); img02 = (ImageView) findViewById(R.id.img_02); } @Override public boolean onTouchEvent(MotionEvent event) { //System.out.println("被摸了"); if(event.getAction()==MotionEvent.ACTION_UP){ Log.v("TAG", "被抬起来"); if(img01.getVisibility()==View.VISIBLE){ img01.setVisibility(View.GONE); img02.setVisibility(View.VISIBLE); }else{ img01.setVisibility(View.VISIBLE); img02.setVisibility(View.GONE); } }else if(event.getAction()==MotionEvent.ACTION_DOWN){ Log.v("TAG", "被按下了"); }else if(event.getAction()==MotionEvent.ACTION_MOVE){ Log.v("TAG", "移动了"); } return super.onTouchEvent(event); }