android Intent类

16lz 2022-05-24

1）利用Inent监听应用程序的安装、替换、删除等

与包相关的Intent：

Intent.ACTION_PACKAGE_INSTALL

Intent.ACTION_PACKAGE_ADDED

Intent.ACTION_PACKAGE_REPLACED

Intent.ACTION_PACKAGE_REMOVED

Intent.ACTION_PACKAGE_CHANGED

Intent.ACTION_PACKAGE_RESTARTED

Intent.ACTION_PACKAGE_DATA_CLEARED

首先定义一个Broadcast类——HandlePackageAction，代码如下：

[java] view plain copy print ?

publicclassHandlePackageActionextendsBroadcastReceiver{
publicvoidonReceive(Contextcontext,Intentintent){
Stringaction=intent.getAction();
if(Intent.ACTION_PACKAGE_ADDED.equals(action))
{
Toast.makeText(context,"有应用被添加",Toast.LENGTH_LONG).show();
}
elseif(Intent.ACTION_PACKAGE_REMOVED.equals(action))
{
Toast.makeText(context,"有应用被删除",Toast.LENGTH_LONG).show();
}
elseif(Intent.ACTION_PACKAGE_CHANGED.equals(action))
{
Toast.makeText(context,"有应用被改变",Toast.LENGTH_LONG).show();
}
elseif(Intent.ACTION_PACKAGE_REPLACED.equals(action))
{
Toast.makeText(context,"有应用被替换",Toast.LENGTH_LONG).show();
}
elseif(Intent.ACTION_PACKAGE_RESTARTED.equals(action))
{
Toast.makeText(context,"有应用被重启",Toast.LENGTH_LONG).show();
}
elseif(Intent.ACTION_PACKAGE_INSTALL.equals(action))
{
Toast.makeText(context,"有应用被安装",Toast.LENGTH_LONG).show();
}
}
}

然后在AndroidManifest.xml中注册HandlePackageAction，内容如下：

[html] view plain copy print ?

<receiverandroid:name=".HandlePackageAction"
android:enabled="true">
<intent-filter>
<actionandroid:name="android.intent.action.PACKAGE_ADDED"></action>
<actionandroid:name="android.intent.action.PACKAGE_CHANGED"></action>
<actionandroid:name="android.intent.action.PACKAGE_REMOVED"></action>
<actionandroid:name="android.intent.action.PACKAGE_REPLACED"></action>
<actionandroid:name="android.intent.action.PACKAGE_RESTARTED"></action>
<actionandroid:name="android.intent.action.PACKAGE_INSTALL"></action>
<dataandroid:scheme="package"></data>
</intent-filter>
</receiver>

2）安装、卸载应用程序

[java] view plain copy print ?

Intentintent=newIntent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(newFile("/sdcard/Test.apk")),
"application/vnd.android.package-archive");
startActivity(intent);//安装程序
UripackageURI=Uri.parse("package:com.ygc.Test");
IntentuninstallIntent=newIntent(Intent.ACTION_DELETE,packageURI);
startActivity(uninstallIntent);//正常卸载程序

3）开机启动Activity

首先定义一个Broadcast类——HandleBootComplete，代码如下：

[java] view plain copy print ?

publicclassHandleBootCompleteextendsBroadcastReceiver{
publicvoidonReceive(Contextcontext,Intentintent){
IntentstartActivityIntent=newIntent(context,DrawText.class);
startActivityIntent.setAction(Intent.ACTION_MAIN);
startActivityIntent.addCategory(Intent.CATEGORY_LAUNCHER);
startActivityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(startActivityIntent);
}
}

然后在AndroidManifest.xml中注册HandleBootComplete，内容如下：

[html] view plain copy print ?

<uses-permissionandroid:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiverandroid:name="HandleBootComplete"android:enabled="true">
<intent-filter>
<actionandroid:name="android.intent.action.BOOT_COMPLETED"/>
<categoryandroid:name="android.intent.category.HOME"/>
</intent-filter>

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