来自不同布局android的数据的持久性

Question

我正在做一个Android应用程序，其中我有两个不同的布局用于相同的活动（一个用于纵向，一个用于横向，重要的是说它们完全不同）。好吧，我的问题是它们之间的数据持久性，因为当在纵向和横向之间切换时数据丢失，试图解决我的问题我使用onSaveInstanceState并更改清单，但在我的情况下它们都不起作用。我希望你能帮助我，问候。

概率pd。 Landscape位于目录layout-land

中

mensaje=(EditText) findViewById(R.id.EditTextAlarma); //portrait
horaEdit=(EditText) findViewById(R.id.editTextHoras); //landscape
minutosEdit=(EditText) findViewById(R.id.editTextMinutos); //landscape
segundosEdit=(EditText) findViewById(R.id.editTextSegundos); //landscape
mensajeTimer=(EditText) findViewById(R.id.mensajeTimer); //landscape

@Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putString("msj",mensaje.getText().toString());
    outState.putString("hora",horaEdit.getText().toString());
    outState.putString("min",minutosEdit.getText().toString());
    outState.putString("seg",segundosEdit.getText().toString());
    outState.putString("msjT",mensajeTimer.getText().toString());

}


@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
    super.onRestoreInstanceState(savedInstanceState);

    String m=savedInstanceState.getString("msj");
    String h=savedInstanceState.getString("hora");
    String mn=savedInstanceState.getString("min");
    String s=savedInstanceState.getString("seg");
    String mt=savedInstanceState.getString("msjT");
    mensaje.setText(m);
    horaEdit.setText(h);
    minutosEdit.setText(mn);
    segundosEdit.setText(s);
    mensajeTimer.setText(mt);

}

Answer 1

从您的活动中覆盖这两种方法

然后当方向更改时，只需获取 onRestoreInstanceState 中的值并将其设置为xml小部件

 @Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    //SAVE YOUR DATA HERE
    outState.putString("key","Value");
    //YOU CAN SAVE ANY TYPE OF DATA HERE AND RETRIVE

}


@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
    super.onRestoreInstanceState(savedInstanceState);
    //RETRIVE YOUR DATA HERE
    String value=savedInstanceState.getString("key");
    //SET VALUE TO XML HERE
    Log.d("Value saved is:",value);

}