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Code for TextSwitcher


code is :

   TextSwitcher ts1;
    Button b1;
    int stringindex = 0;
    TextView tv;
    private String jokes[] = {"text1","text2","text3","text4","text5"};




        ts1 = (TextSwitcher) findViewById(R.id.ts1;
        b1 = (Button) findViewById(R.id.bt1);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (stringindex == jokes.length-1){
                    stringindex = 0 ;
                    ts1.setText(jokes[stringindex]);
                }else{
                    ts1.setText(jokes[++stringindex]);
                }
            }
        });

        ts1.setFactory(new ViewSwitcher.ViewFactory() {
            @Override
            public View makeView() {
                tv= new TextView(MainActivity.this);
                tv.setTextColor(Color.BLACK);
                tv.setTextSize(60);
                tv.setGravity(Gravity.CENTER_HORIZONTAL);
                return tv;
            }
        });
        ts1.setText(jokes[stringindex]);
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