简单的说明一下:
通过Start Activity 这个活动启动 Result Data Activity这个活动,并在Result Data Activity这个活动当中获取到UserName后返回给StartActvity这个活动当中;
代码如下:
StartActivity代码如下:
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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switch (requestCode){
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case 1:
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if(resultCode==RESULT_OK){
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String name = data.getStringExtra("name");
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Toast.makeText(this,name,Toast.LENGTH_LONG).show();
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}
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break;
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default:
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break;
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}
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}
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@Override
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public void onClick(View v) {
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switch (v.getId()){
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case R.id.btn_3:
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// SecondActivity.startAction(this);
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Intent intent1 = new Intent(this,SecondActivity.class);
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startActivityForResult(intent1,1);
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Log.d("barneyx","start_secondactivity!!!!");
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default:
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break;
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}
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}
Result Data Activity代码如下:
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@Override
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protected void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.second_layout);
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((Button)findViewById(R.id.btn_2)).setOnClickListener(this);
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}
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@Override
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public void onClick(View v) {
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switch (v.getId()){
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case R.id.btn_2:
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Intent res_intent = new Intent();
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String name = ((EditText)findViewById(R.id.name)).getText().toString();
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Log.d("barneyx",name);
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res_intent.putExtra("name",name);
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setResult(RESULT_OK,res_intent);
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finish();
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break;
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default:
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break;
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}
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}
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