android系列4.Intent学习

1.打电话：

1 Intent intent = new Intent();
2 intent.setAction(Intent.ACTION_CALL);
3 intent.setData(Uri.parse("tel:159xxxxxxxx"));
4 startActivity(intent);

必须在AndroidManifest.xml中添加权限：

<uses-permission android:name="android.permission.CALL_PHONE" />

2.发短信：

1 Intent intentsms = new Intent();
2 intentsms.setAction(Intent.ACTION_SENDTO);
3 intentsms.setData(Uri.parse("smsto:159xxxxxxxx"));
4 intentsms.putExtra("sms_body", "xxxxxx");
5 startActivity(intentsms);

同样必须在AndroidManifest.xml中添加权限：

<uses-permission android:name="android.permission.SEND_SMS" />

3.通过Intent之间进行Activity值传递

 1 public class IntentDemoActivity extends Activity {
 2     
 3     private Button mainBtn = null;
 4     private final static Integer REQUEST_CODE = 1;
 5     /** Called when the activity is first created. */
 6     @Override
 7     public void onCreate(Bundle savedInstanceState) {
 8         super.onCreate(savedInstanceState);
 9         setContentView(R.layout.main);
10         mainBtn = (Button)findViewById(R.id.mainBtn);
11         mainBtn.setOnClickListener(new OnClickListener() {
12             @Override
13             public void onClick(View v) {
14                 // TODO Auto-generated method stub
15                 Intent intent = new Intent();
16                 intent.setClass(IntentDemoActivity.this, SecondActivity.class);
17                 intent.putExtra("str", "hello");
18                 //传对象
19 //                intent.putExtra("obj", 序列化对象);
20                 //启动activity
21 //                startActivity(intent);
22                 //可以接受返回参数,通过onActivityResult()接收
23                 startActivityForResult(intent, REQUEST_CODE);
24             }
25         });
26     }
27     @Override
28     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
29 //        super.onActivityResult(requestCode, resultCode, data);
30         if(requestCode == REQUEST_CODE){
31             if(resultCode == SecondActivity.RESULT_CODE){
32                 Bundle bundle = data.getExtras();
33                 String backStr = bundle.getString("backData");
34                 Toast.makeText(IntentDemoActivity.this, backStr, Toast.LENGTH_LONG).show();
35             }
36         }
37     }
38 }

上面的效果是点击IntentDemoActivity中的按钮时向SecondActivity中传递hello，并且通过onActivityResult接收返回信息。

 1 public class SecondActivity extends Activity {
 2     
 3     private TextView secondTxt = null;
 4     private Button btn = null;
 5     public static final Integer RESULT_CODE = 1;
 6     @Override
 7     protected void onCreate(Bundle savedInstanceState) {
 8         
 9         super.onCreate(savedInstanceState);
10         //设置布局文件
11         setContentView(R.layout.second);
12         Intent intent = getIntent();
13         Bundle bundle = intent.getExtras();
14         String str = bundle.getString("str");
15         
16         secondTxt = (TextView)findViewById(R.id.tv);
17         secondTxt.setText(str);
18         
19         btn = (Button)findViewById(R.id.sendBtn);
20         btn.setOnClickListener(new OnClickListener() {
21             
22             @Override
23             public void onClick(View v) {
24                 Intent intent = new Intent();
25                 intent.putExtra("backData", "back data");
26                 setResult(RESULT_CODE, intent);
27                 finish();
28             }
29         });
30     }
31 
32 }

接收传过来的str并且点击button时返回字符串back data给IntentDemoActivity

关于Intent说明http://developer.android.com/reference/android/content/Intent.html

网上找的一些资料：

 1 1，掉web浏览器
 2 Uri myBlogUri = Uri.parse("http://kuikui.iteye.com");
 3 returnIt = new Intent(Intent.ACTION_VIEW, myBlogUri);
 4 2，地图
 5 Uri mapUri = Uri.parse("geo:38.899533,-77.036476");
 6 returnIt = new Intent(Intent.ACTION_VIEW, mapUri);
 7 3，调拨打电话界面
 8 Uri telUri = Uri.parse("tel:100861");
 9 returnIt = new Intent(Intent.ACTION_DIAL, telUri);
10 4，直接拨打电话
11 Uri callUri = Uri.parse("tel:100861");
12 returnIt = new Intent(Intent.ACTION_CALL, callUri);
13 5，卸载
14 Uri uninstallUri = Uri.fromParts("package", "xxx", null);
15 returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
16 6，安装
17 Uri installUri = Uri.fromParts("package", "xxx", null);
18 returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
19 7，播放
20 Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");
21 returnIt = new Intent(Intent.ACTION_VIEW, playUri);
22 8，掉用发邮件
23 Uri emailUri = Uri.parse("mailto:shenrenkui@gmail.com");
24 returnIt = new Intent(Intent.ACTION_SENDTO, emailUri);
25 9，发邮件
26 returnIt = new Intent(Intent.ACTION_SEND);
27 String[] tos = { "shenrenkui@gmail.com" };
28 String[] ccs = { "shenrenkui@gmail.com" };
29 returnIt.putExtra(Intent.EXTRA_EMAIL, tos);
30 returnIt.putExtra(Intent.EXTRA_CC, ccs);
31 returnIt.putExtra(Intent.EXTRA_TEXT, "body");
32 returnIt.putExtra(Intent.EXTRA_SUBJECT, "subject");
33 returnIt.setType("message/rfc882");
34 Intent.createChooser(returnIt, "Choose Email Client");
35 10，发短信
36 Uri smsUri = Uri.parse("tel:100861");
37 returnIt = new Intent(Intent.ACTION_VIEW, smsUri);
38 returnIt.putExtra("sms_body", "shenrenkui");
39 returnIt.setType("vnd.android-dir/mms-sms");
40 11，直接发邮件
41 Uri smsToUri = Uri.parse("smsto://100861");
42 returnIt = new Intent(Intent.ACTION_SENDTO, smsToUri);
43 returnIt.putExtra("sms_body", "shenrenkui");
44 12，发彩信
45 Uri mmsUri = Uri.parse("content://media/external/images/media/23");
46 returnIt = new Intent(Intent.ACTION_SEND);
47 returnIt.putExtra("sms_body", "shenrenkui");
48 returnIt.putExtra(Intent.EXTRA_STREAM, mmsUri);
49 returnIt.setType("image/png");
50 用获取到的Intent直接调用startActivity(returnIt)就ok了。