Activity保存与恢复状态。。。点击事件的方法。。关闭Activity

Activity的保存与恢复

  @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        Log.e("TAG", "保存应用状态");
        outState.putString("e1", e1.getText().toString());
        outState.putString("e2",e2.getText().toString());
        outState.putString("e3",e3.getText().toString());
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        Log.e("TAG", "恢复应用状态");
        e1.setText(savedInstanceState.getString("e1") + "恢复之后的");
        e2.setText(savedInstanceState.getString("e2")+"恢复之后的");
        e3.setText(savedInstanceState.getString("e3")+"恢复之后的");
    }

点击事件的方法

关闭程序

public void guanbi(View v){    //关闭Activity    finish();}