hello sir
I have problem in one example of TextSwitcher
its working fine
there is some problem to understand
what is role of ViewSwitcher and what it does
1 why we implements ViewSwitcher with TextSwitcher
2 if we comment implements ViewSwitcher then example may not run
3 when this example is run then the label is display with increased size
what is the purpose of ViewSwitcher in TextSwitcher
import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher;
/**
* Uses a TextSwitcher.
*/
public class test extends Activity implements ViewSwitcher.ViewFactory,
View.OnClickListener {
private TextSwitcher mSwitcher;
private int mCounter = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mSwitcher = (TextSwitcher) findViewById(R.id.second);
mSwitcher.setFactory(this);
Animation in = AnimationUtils.loadAnimation(this, R.anim.push_left_in);
Animation out = AnimationUtils.loadAnimation(this,
R.anim.push_left_out);
mSwitcher.setInAnimation(in);
mSwitcher.setOutAnimation(out);
Button nextButton = (Button) findViewById(R.id.first);
nextButton.setOnClickListener(this);
updateCounter();
}
public void onClick(View v) {
mCounter++;
updateCounter();
}
private void updateCounter() {
mSwitcher.setText("hello world");
}
public View makeView() {
TextView t = new TextView(this);
t.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
t.setTextSize(36);
return t;
}
}
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