Android手机开发:Intent和在Activity之间传递信息
Android手机开发:Intent和在Activity之间传递信息
1. 简单的Intent使用,仅仅用于Activity直接的跳转
- Intent intent = new Intent();
- intent.setClass(FileProcessHust.this, MyListActivity.class);
- startActivity(intent);
- static final int REQUEST_CODE = 1;
- Intent intent1 = new Intent(ActivityMain.this, Activity1.class);
- intent1.putExtra("activityMain", "数据来自activityMain");
- startActivityForResult(intent1, REQUEST_CODE);
在Activity1里,接受信息,方法如下:
- String data=null;
- Bundle extras = getIntent().getExtras();
- if (extras != null) {
- data = extras.getString("activityMain");
- }
- Bundle bundle = new Bundle();
- bundle.putString("store", "数据来自Activity1");
- Intent mIntent = new Intent();
- mIntent.putExtras(bundle);
- setResult(RESULT_OK, mIntent);
- finish();
- @Override
- protected void onActivityResult(int requestCode, int resultCode, Intent data) {
- if (requestCode == REQUEST_CODE) {
- if (resultCode == RESULT_CANCELED)
- setTitle("取消");
- else if (resultCode == RESULT_OK) {
- String temp=null;
- Bundle extras = data.getExtras();
- if (extras != null) {
- temp = extras.getString("store");
- }
- setTitle(temp);
- }
- }
- }
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