Hackfive 使用TextSwitcher和ImageSwitcher实现平滑过渡

 1 public class MainActivity extends Activity {
 2     private static final String[] TEXTS = { "First", "Second", "Third" };
 3     private int mTextsPosition = 0;
 4     private TextSwitcher mTextSwitcher;
 5     @Override
 6     public void onCreate(Bundle savedInstanceState) {
 7         super.onCreate(savedInstanceState);
 8         setContentView(R.layout.main);
 9         mTextSwitcher = (TextSwitcher) findViewById(R.id.your_textview);
10         mTextSwitcher.setFactory(new ViewFactory() {
11             @Override
12             public View makeView() {
13                 System.out.println("makeView");
14                 TextView t = new TextView(MainActivity.this);
15                 t.setGravity(Gravity.CENTER);
16                 return t;
17             }
18         });
19         mTextSwitcher.setInAnimation(this, android.R.anim.fade_in);
20         mTextSwitcher.setOutAnimation(this, android.R.anim.fade_out);
21         onSwitchText(null);
22     }
23     public void onSwitchText(View v) {
24         mTextSwitcher.setText(TEXTS[mTextsPosition]);
25         setNextPosition();
26     }
27     private void setNextPosition() {
28         mTextsPosition = (mTextsPosition + 1) % TEXTS.length;
29     }
30 }