Question

我正在尝试使用Intent设置警报，但是当我尝试打开Intent时，它会因IllegalStateException而崩溃。

以下是单击按钮时打开Intent的代码：

public void guardarClick(View view) {
        Intent i = new Intent(AlarmClock.ACTION_SET_ALARM);
        i.putExtra(AlarmClock.EXTRA_MESSAGE, descriptionAlarm.getText().toString());
        i.putExtra(AlarmClock.EXTRA_HOUR, datePicker.getHour());
        i.putExtra(AlarmClock.EXTRA_MINUTES, datePicker.getMinute());
        startActivityForResult(i, 1);
}

这是错误：

04-12 20:01:19.288 4559-4559/edu.lasalle.pprog2.ac3_E/AndroidRuntime: FATAL EXCEPTION: main
                                                                                        Process: edu.lasalle.pp2, PID: 4559
                                                                                        java.lang.IllegalStateException: Could not execute method for android:onClick
                                                                                            at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
                                                                                            at android.view.View.performClick(View.java:5637)
                                                                                            at android.view.View$PerformClick.run(View.java:22429)
                                                                                            at android.os.Handler.handleCallback(Handler.java:751)
                                                                                            at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                                            at android.os.Looper.loop(Looper.java:154)
                                                                                            at android.app.ActivityThread.main(ActivityThread.java:6119)
                                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
                                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
                                                                                         Caused by: java.lang.reflect.InvocationTargetException
                                                                                            at java.lang.reflect.Method.invoke(Native Method)
                                                                                            at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
                                                                                            at android.view.View.performClick(View.java:5637) 
                                                                                            at android.view.View$PerformClick.run(View.java:22429) 
                                                                                            at android.os.Handler.handleCallback(Handler.java:751) 
                                                                                            at android.os.Handler.dispatchMessage(Handler.java:95) 
                                                                                            at android.os.Looper.loop(Looper.java:154) 
                                                                                            at android.app.ActivityThread.main(ActivityThread.java:6119) 
                                                                                            at java.lang.reflect.Method.invoke(Native Method) 
                                                                                            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
                                                                                            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
                                                                                         Caused by: java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.SET_ALARM cmp=com.android.deskclock/.HandleApiCalls (has extras) } from ProcessRecord{723e06e 4559:edu.lasalle.pprog2.ac3/u0a81} (pid=4559, uid=10081) requires com.android.alarm.permission.SET_ALARM
                                                                                            at android.os.Parcel.readException(Parcel.java:1684)
                                                                                            at android.os.Parcel.readException(Parcel.java:1637)
                                                                                            at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:3101)
                                                                                            at android.app.Instrumentation.execStartActivity(Instrumentation.java:1518)
                                                                                            at android.app.Activity.startActivityForResult(Activity.java:4225)
                                                                                            at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50)
                                                                                            at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:79)
                                                                                            at android.app.Activity.startActivityForResult(Activity.java:4183)
                                                                                            at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
                                                                                            at edu.lasalle.pprog2.ac3.AlarmActivity.guardarClick(AlarmActivity.java:59)
                                                                                            at java.lang.reflect.Method.invoke(Native Method) 
                                                                                            at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) 
                                                                                            at android.view.View.performClick(View.java:5637) 
                                                                                            at android.view.View$PerformClick.run(View.java:22429) 
                                                                                            at android.os.Handler.handleCallback(Handler.java:751) 
                                                                                            at android.os.Handler.dispatchMessage(Handler.java:95) 
                                                                                            at android.os.Looper.loop(Looper.java:154) 
                                                                                            at android.app.ActivityThread.main(ActivityThread.java:6119) 
                                                                                            at java.lang.reflect.Method.invoke(Native Method)

我做错了什么？

Answer 1

您应该在com.android.alarm.permission.SET_ALARM文件中添加权限AndroidManifest.xml。
```
<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
```

使用startActivity(i)代替startActivityForResult(i, 1)。

Intent i = new Intent(AlarmClock.ACTION_SET_ALARM);
i.putExtra(AlarmClock.EXTRA_MESSAGE, descriptionAlarm.getText().toString());
i.putExtra(AlarmClock.EXTRA_HOUR, datePicker.getHour());
i.putExtra(AlarmClock.EXTRA_MINUTES, datePicker.getMinute());
startActivity(i);

调用警报的Intent时出现IllegalStateException

1 个答案: