只要利用adb logcat ,再搭配使用setComponet(),就可以輕易的呼叫第三方程式(不在自己的application內)。
詳細用法參考原文:
http://developer.android.com/reference/android/content/Intent.html#setComponent%28android.content.ComponentName%29
比如我自己的程式想執行Android裡面的Settings,先用adb logcat看系統是如何呼叫Settings的
I/ActivityManager( 60): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.Settings }
I/ActivityManager( 60): Displayed activity com.android.settings/.Settings: 1205 ms (total 1205 ms)
只要有這個cmp就可以呼叫Settings了
public class Main extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent i = new Intent();
ComponentName comp = new ComponentName("com.android.settings", "com.android.settings.Settings");
i.setComponent(comp);
startActivity(i);
}
}
另外有些程式要被執行,Intent還要多加搭配Intent.setData()或者是Intent.setAction()等方式。比如:想要開啟Browser,而且是開啟tw.yahoo.com的網頁,程式碼如下:
Intent i = new Intent();
ComponentName comp = new ComponentName("com.android.browser", "com.android.browser.BrowserActivity");
i.setComponent(comp);
Uri uri = Uri.parse("http://tw.yahoo.com");
i.setData(uri);
startActivity(i);
詳細用法參考原文:
http://developer.android.com/reference/android/content/Intent.html#setComponent%28android.content.ComponentName%29
比如我自己的程式想執行Android裡面的Settings,先用adb logcat看系統是如何呼叫Settings的
I/ActivityManager( 60): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.Settings }
I/ActivityManager( 60): Displayed activity com.android.settings/.Settings: 1205 ms (total 1205 ms)
只要有這個cmp就可以呼叫Settings了
public class Main extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent i = new Intent();
ComponentName comp = new ComponentName("com.android.settings", "com.android.settings.Settings");
i.setComponent(comp);
startActivity(i);
}
}
另外有些程式要被執行,Intent還要多加搭配Intent.setData()或者是Intent.setAction()等方式。比如:想要開啟Browser,而且是開啟tw.yahoo.com的網頁,程式碼如下:
Intent i = new Intent();
ComponentName comp = new ComponentName("com.android.browser", "com.android.browser.BrowserActivity");
i.setComponent(comp);
Uri uri = Uri.parse("http://tw.yahoo.com");
i.setData(uri);
startActivity(i);
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