I used to SharedPreferences.apply() method. When this method is called very often, then it hangs the application. Commit() method is very slow, but is working properly.
You can get the ANR in my example. Fold and unfold the activity!
public class Main extends Activity {
@Override
public void onCreate(Bundle b) {
super.onCreate(b);
setContentView(R.layout.main);
new Thread(new Runnable() {
@Override
public void run() {
while(true) {
SharedPreferences.Editor ed = getEditor();
ed.putString(getUUID(), getUUID());
ed.apply();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
}
public static String getUUID() {
return UUID.randomUUID().toString();
}
final private String BASE = "BASE";
private SharedPreferences shadPrefBase = null;
SharedPreferences getSharedPreferences() {
if(shadPrefBase == null) {
shadPrefBase = getSharedPreferences(BASE, Context.MODE_MULTI_PROCESS);
}
return shadPrefBase;
}
private SharedPreferences.Editor editorShared = null;
private SharedPreferences.Editor getEditor() {
if(editorShared == null) {
editorShared = getSharedPreferences().edit();
}
return editorShared;
}
}
Fold and unfold the activity!
