例如,当我点击but1
时,其他活动的textview1
必须更改,当我点击but2
时,textview2
必须更改等。点击我的代码时点击点击第一个所有三个textviews
后的3个按钮(一个接一个)正在填充首先应该出现的信息textview.
这是我的第一个活动:
buttonvis1 = (Button) findViewById(R.id.button1);
buttonvis2 = (Button) findViewById(R.id.button2);
buttonvis2.setVisibility(Button.GONE);
buttonvis1.setOnClickListener(new OnClickListener(){
public void onClick(View v){
Intent intent = new Intent(MainActivity.this,Ostanovki.class);
intent.putExtra("in1",input_in.getText().toString());
intent.putExtra("out1", input_out.getText().toString());
buttonvis2.setVisibility(Button.VISIBLE);
//startActivity(intent);
}
});
buttonvis3 = (Button) findViewById(R.id.button3);
buttonvis3.setVisibility(Button.GONE);
buttonvis2.setOnClickListener(new OnClickListener(){
public void onClick(View v){
Intent intent = new Intent(MainActivity.this,Ostanovki.class);
intent.putExtra("in2",input_in.getText().toString());
intent.putExtra("out2", input_out.getText().toString());
buttonvis3.setVisibility(Button.VISIBLE);
startActivity(intent);
}
});
buttonvis3.setOnClickListener(new OnClickListener(){
public void onClick(View v){
Intent intent = new Intent(MainActivity.this,Ostanovki.class);
intent.putExtra("in3",input_in.getText().toString());
intent.putExtra("out3", input_out.getText().toString());
//startActivity(intent);
}
});
这是第二个:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ostanovki);
txtOst1 = (TextView) findViewById(R.id.txtost1);
txtOst2 = (TextView) findViewById(R.id.txtost2);
txtOst3 = (TextView) findViewById(R.id.txtost3);
input1 = getIntent().getExtras().getString("in1");
output1 = getIntent().getExtras().getString("out1");
txtOst1.setText("В маршрутку зашло " +input1 +"а вышло " +output1);
input2 = getIntent().getExtras().getString("in2");
output2 = getIntent().getExtras().getString("out2");
txtOst2.setText("В маршрутку зашло " +input2 +"а вышло " +output2);
input3 = getIntent().getExtras().getString("in3");
output3 = getIntent().getExtras().getString("out3");
txtOst3.setText("В маршрутку зашло " +input3 +"а вышло " +output3);
我是一个初学者,所以如果我写过傻瓜,不要生气。谢谢;)
答案 0 :(得分:0)
在activity2中,在onCreate()中,您可以通过检索包(包含调用活动发送的所有消息)并在其上调用getString来获取String消息:
Bundle bundle = getIntent().getExtras();
String message = bundle.getString("message");
答案 1 :(得分:0)
阅读完评论后,我认为使用SharedPreferences可以让您的工作更轻松:
保存您的数据
SharedPreferences pref = getSharedPreferences("any_prefname", MODE_PRIVATE);
Editor editor = pref.edit();
editor.putString("in1",input_in.getText().toString() );
editor.putString("out1",input_out.getText().toString() );
editor.commit();
然后在第二个活动中检索您的数据如下:,
SharedPreferences pref = getSharedPreferences("any_prefname", MODE_PRIVATE);
input1 = pref.getString("in1", "defaultString");
output1 = pref.getString("out1", "defaultString");
txtOst1.setText("В маршрутку зашло " +input1 +"а вышло " +output1);
答案 2 :(得分:0)
如果我理解了您的问题,那么在点击所有问题之后您需要3个按钮,请查看另一个活动中的值,因此您必须将所有三个值放入intent.use以下代码:
Intent intent = new Intent(MainActivity.this,Ostanovki.class);
buttonvis1 = (Button) findViewById(R.id.button1);
buttonvis2 = (Button) findViewById(R.id.button2);
buttonvis2.setVisibility(Button.GONE);
buttonvis1.setOnClickListener(new OnClickListener(){
public void onClick(View v){
intent.putExtra("in1",input_in.getText().toString());
intent.putExtra("out1", input_out.getText().toString());
buttonvis2.setVisibility(Button.VISIBLE);
//startActivity(intent);
}
});
buttonvis3 = (Button) findViewById(R.id.button3);
buttonvis3.setVisibility(Button.GONE);
buttonvis2.setOnClickListener(new OnClickListener(){
public void onClick(View v){
intent.putExtra("in2",input_in.getText().toString());
intent.putExtra("out2", input_out.getText().toString());
buttonvis3.setVisibility(Button.VISIBLE);
startActivity(intent);
}
});
buttonvis3.setOnClickListener(new OnClickListener(){
public void onClick(View v){
intent.putExtra("in3",input_in.getText().toString());
intent.putExtra("out3", input_out.getText().toString());
//startActivity(intent);
}
});
并且在第二个活动中,您必须获取数据,因此请使用以下代码:
Bundle bundle = getIntent().getExtras();
String in1= bundle.getString("in1");
String out1= bundle.getString("out1");
String in2= bundle.getString("in2");
String out2= bundle.getString("out2");
String in3= bundle.getString("in3");
String out3= bundle.getString("out3");