转载http://qq361119908.iteye.com/blog/631534
ntent用法实例
1.无参数Activity跳转
Java代码
- Intent it = new Intent(Activity.Main.this, Activity2.class);
- startActivity(it);
2.向下一个Activity传递数据(使用Bundle和Intent.putExtras)
Java代码
- Intent it = new Intent(Activity.Main.this, Activity2.class);
- Bundle bundle=new Bundle();
- bundle.putString("name", "This is from MainActivity!");
- it.putExtras(bundle); // it.putExtra(“test”, "shuju”);
- startActivity(it); // startActivityForResult(it,REQUEST_CODE);
对于数据的获取可以采用:
Java代码
- Bundle bundle=getIntent().getExtras();
- String name=bundle.getString("name");
3.向上一个Activity返回结果(使用setResult,针对startActivityForResult(it,REQUEST_CODE)启动的Activity)
Java代码
- Intent intent=getIntent();
- Bundle bundle2=new Bundle();
- bundle2.putString("name", "This is from ShowMsg!");
- intent.putExtras(bundle2);
- setResult(RESULT_OK, intent);
4.回调上一个Activity的结果处理函数(onActivityResult)
Java代码
- @Override
- protected void onActivityResult(int requestCode, int resultCode, Intent data) {
- // TODO Auto-generated method stub
- super.onActivityResult(requestCode, resultCode, data);
- if (requestCode==REQUEST_CODE){
- if(resultCode==RESULT_CANCELED)
- setTitle("cancle");
- else if (resultCode==RESULT_OK) {
- String temp=null;
- Bundle bundle=data.getExtras();
- if(bundle!=null) temp=bundle.getString("name");
- setTitle(temp);
- }
- }
- }
下面是转载来的其他的一些Intent用法实例(转自javaeye)
显示网页
Java代码
- 1. Uri uri = Uri.parse("http://google.com");
- 2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
- 3. startActivity(it);
显示地图
Java代码
- 1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
- 2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
- 3. startActivity(it);
- 4. //其他 geo URI 範例
- 5. //geo:latitude,longitude
- 6. //geo:latitude,longitude?z=zoom
- 7. //geo:0,0?q=my+street+address
- 8. //geo:0,0?q=business+near+city
- 9. //google.streetview:cbll=lat,lng&cbp=1,yaw,,pitch,zoom&mz=mapZoom
路径规划
Java代码
- 1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
- 2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
- 3. startActivity(it);
- 4. //where startLat, startLng, endLat, endLng are a long with 6 decimals like: 50.123456
打电话
Java代码
- 1. //叫出拨号程序
- 2. Uri uri = Uri.parse("tel:0800000123");
- 3. Intent it = new Intent(Intent.ACTION_DIAL, uri);
- 4. startActivity(it);
- 1. //直接打电话出去
- 2. Uri uri = Uri.parse("tel:0800000123");
- 3. Intent it = new Intent(Intent.ACTION_CALL, uri);
- 4. startActivity(it);
- 5. //用這個,要在 AndroidManifest.xml 中,加上
- 6. //<uses-permission id="android.permission.CALL_PHONE" />
传送SMS/MMS
Java代码
- 1. //调用短信程序
- 2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
- 3. it.putExtra("sms_body", "The SMS text");
- 4. it.setType("vnd.android-dir/mms-sms");
- 5. startActivity(it);
- 1. //传送消息
- 2. Uri uri = Uri.parse("smsto://0800000123");
- 3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
- 4. it.putExtra("sms_body", "The SMS text");
- 5. startActivity(it);
- 1. //传送 MMS
- 2. Uri uri = Uri.parse("content://media/external/images/media/23");
- 3. Intent it = new Intent(Intent.ACTION_SEND);
- 4. it.putExtra("sms_body", "some text");
- 5. it.putExtra(Intent.EXTRA_STREAM, uri);
- 6. it.setType("image/png");
- 7. startActivity(it);
传送 Email
Java代码
- 1. Uri uri = Uri.parse("mailto:[email protected]");
- 2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
- 3. startActivity(it);
- 1. Intent it = new Intent(Intent.ACTION_SEND);
- 2. it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");
- 3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
- 4. it.setType("text/plain");
- 5. startActivity(Intent.createChooser(it, "Choose Email Client"));
- 1. Intent it=new Intent(Intent.ACTION_SEND);
- 2. String[] tos={"[email protected]"};
- 3. String[] ccs={"[email protected]"};
- 4. it.putExtra(Intent.EXTRA_EMAIL, tos);
- 5. it.putExtra(Intent.EXTRA_CC, ccs);
- 6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
- 7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
- 8. it.setType("message/rfc822");
- 9. startActivity(Intent.createChooser(it, "Choose Email Client"));
传送附件
Java代码
- Intent it = new Intent(Intent.ACTION_SEND);
- it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
- it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");
- sendIntent.setType("audio/mp3");
- startActivity(Intent.createChooser(it, "Choose Email Client"));
播放多媒体
Java代码
- Uri uri = Uri.parse("file:///sdcard/song.mp3");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- it.setType("audio/mp3");
- startActivity(it);
- Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
Market 相关
//寻找某个应用
Java代码
- Uri uri = Uri.parse("market://search?q=pname:pkg_name");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
//where pkg_name is the full package path for an application
Java代码
- 显示某个应用的相关信息
- Uri uri = Uri.parse("market://details?id=app_id");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
- //where app_id is the application ID, find the ID
- //by clicking on your application on Market home
- //page, and notice the ID from the address bar
发起一个应用程序
ComponentName 两个参数一个是包名 一个是包下的主类
Java代码
- final Intent intent = new Intent(Intent.ACTION_MAIN, null);
- intent.addCategory(Intent.CATEGORY_LAUNCHER);
- final ComponentName cn = new ComponentName("com.android.settings","com.android.settings.fuelgauge.PowerUsageSummary");
- intent.setComponent(cn);
- intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- startActivity( intent);
Uninstall 应用程序
Java代码
- Uri uri = Uri.fromParts("package", strPackageName, null);
- Intent it = new Intent(Intent.ACTION_DELETE, uri);
- startActivity(it);
返回桌面
Java代码
- Intent unMyIntent = new Intent(Intent.ACTION_MAIN);
- unMyIntent.addCategory(Intent.CATEGORY_HOME);
- startActivity(unMyIntent);
发邮件
Java代码
- Uri uri = Uri.parse("mailto:[email protected]");
- Intent it = new Intent(Intent.ACTION_SENDTO, uri);
发送文件
Java代码
- Intent intent = new Intent();
- intent.setAction(Intent.ACTION_SEND);
- intent.setType(mimeType);
- intent.putExtra(Intent.EXTRA_STREAM, uri);
- startActivity(intent);
- 以上有两个变量需要说明:
- 1. mimeType: 如果是图片,则为"image/*",如果是音频,则为"audio/*",如果是视频,则为"video/*"
- 2. uri:如果是直接读取到文件路径并发送,则为Uri.fromFile(new File(filePath));
- 如果是从数据库中查循出来的uri,则直接传入即可.
发起市场程序
Java代码
- Intent intent = new Intent(Intent.ACTION_VIEW,
- Uri.parse("market://details?id=pname:org.rabold.android.puzzleblox"));
- //Uri.parse("market://search?q=pname:org.rabold.android.puzzleblox"));
- startActivity(intent);
调用系统裁剪图片
Java代码
- Uri photoUri = Uri.fromFile(new File("/mnt/sdcard/ruhua.jpg"));
- Log.i("path", photoUri.toString());
- Intent intent = new Intent("com.android.camera.action.CROP");
- intent.setDataAndType(photoUri, "image/*");
- intent.putExtra("crop", "true");
- intent.putExtra("aspectX", 1);
- intent.putExtra("aspectY", 1);
- intent.putExtra("outputX", 80);
- intent.putExtra("outputY", 80);
- intent.putExtra("output", photoUri);
- intent.putExtra("outputFormat", "JPEG");
实现分享功能
Java代码
- Intent mIntent = new Intent(Intent.ACTION_SEND);
- //根据分享的内容设置不同的mimeType mIntent.setType("text/plain");
- mIntent.putExtra(Intent.EXTRA_TEXT, "下载地址?");
- mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- startActivity(Intent.createChooser(mIntent, "分享"));
获取图片
Java代码
- Intent intent = new Intent();
- /* 设置为image */
- intent.setType("image/*");
- /* 使用Intent.ACTION_GET_CONTENT这个Action */
- intent.setAction(Intent.ACTION_GET_CONTENT);
- /* 取得图片后返回本画面 */
- startActivityForResult(intent, 1);
时间: 2024-10-09 20:37:20