Activity中的startActivityResult,setResult,finish,onActivityResult的关系

一:首先图示:

二:代码:

 1:方法selectName

public void selectName(View view){
		Intent intent = new Intent(this,NameListActivity.class);
		startActivityForResult(intent, 1);
	}
	public void selectName2(View view){
		Intent intent = new Intent(this,NameListActivity.class);
		startActivityForResult(intent, 2);
	}

 

2:方法setResult 与 finish();

		lv_name.setOnItemClickListener(new OnItemClickListener(){
			public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
				String clickedName = names[position];
				Toast.makeText(getApplicationContext(), clickedName, 0).show();
				Intent data = new Intent();
				data.putExtra("clickedName", clickedName);
				setResult(0,data);
				finish();
			}
		});

 

3:方法onActivityResult

	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if(data!=null){
			String name = data.getStringExtra("clickedName");
			if(requestCode == 1)
				et_name.setText(name);
			if(requestCode == 2)
				et_name2.setText(name);
			
		}
	}