android权限请求一行代马
2018-08-28 本文已影响0人
TMAC_EAH
查看rxpermission源码可知,核心代码是创建一个无ui的fragment,fragment是可感知activity生命周期的,这个时候,解决方案可不是跃然纸上了吗,不熟rxjava怎么办,在下封装了个简易代码,仅供参考~
public class PermissionCompat {
public static final int CODE = 200;
/**
* 拒绝,不在询问,死了这条心吧~
*/
public static final int DEATH_REFUSAL = 250;
/**
* 一般拒绝,还有机会
*/
public static final int NORMAL_REFUSAL = 251;
/**
* 通过
*/
public static final int PASS = 201;
public interface PermissionCompatCallback {
/**
* @param cmds PASS 通过|NORMAL_REFUSAL 拒绝 |DEATH_REFUSAL 拒绝(
*/
void ok(int cmds);
void refuse(int cmds);
void goSettings(int cmds);
}
public static abstract class PerCompatCallbackAdpt implements PermissionCompatCallback {
@Override
public abstract void ok(int cmds);
@Override
public void refuse(int cmds) {
}
@Override
public void goSettings(int cmds) {
}
}
public static final String TAG = "fragment";
/**
*/
public static void tryReqs(FragmentActivity act, PerCompatCallbackAdpt mPermissionCompatCallback, String... cmds) {
if (cmds != null && cmds.length > 0) {
List<String> mCmdLists = new ArrayList<>();
for (String cmdStr : cmds) {
mCmdLists.add(cmdStr);
}
for (String cmd : mCmdLists) {
if (ContextCompat.checkSelfPermission(act, cmd) != PackageManager.PERMISSION_GRANTED) {
String[] mPermissions = mCmdLists.toArray(new String[mCmdLists.size()]);
FragmentManager fm = act.getSupportFragmentManager();
ShadowFragment mShadowFragment = (ShadowFragment) fm.findFragmentByTag(TAG);
if (mShadowFragment == null) {
mShadowFragment = new ShadowFragment();
fm.beginTransaction().add(mShadowFragment, TAG).commitAllowingStateLoss();
}
fm.executePendingTransactions();
if (mShadowFragment != null) {
mShadowFragment.mPermissionCompatCallback = mPermissionCompatCallback;
mShadowFragment.requestPermissions(mPermissions, CODE);
}
return;
}
}
if (mPermissionCompatCallback != null) {
mPermissionCompatCallback.ok(PASS);
}
} else {
if (mPermissionCompatCallback != null) {
mPermissionCompatCallback.ok(PASS);
}
}
}
public static boolean hasAllPermissionsGranted(int[] grantResults) {
for (int grantResult : grantResults) {
if (grantResult == PackageManager.PERMISSION_DENIED) {
return false;
}
}
return true;
}
}
public class ShadowFragment extends Fragment {
public PermissionCompat.PermissionCompatCallback mPermissionCompatCallback;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 禁止横竖屏切换时的Fragment的重建
setRetainInstance(true);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
System.out.println("###########权限回调执行啦#############");
System.out.println("###########权限回调执行啦###########################");
System.out.println("###########权限回调执行啦#############");
if (mPermissionCompatCallback != null) {
if (PermissionCompat.hasAllPermissionsGranted(grantResults)) {
mPermissionCompatCallback.ok(PermissionCompat.PASS);
} else {
for (String permission : permissions) { //拒绝,并且不在询问
if (!ActivityCompat.shouldShowRequestPermissionRationale(getActivity(), permission)) {
mPermissionCompatCallback.goSettings(PermissionCompat.DEATH_REFUSAL);
return;
}
}
mPermissionCompatCallback.refuse(PermissionCompat.NORMAL_REFUSAL);
}
}
}
}
activity中,一行代马
PermissionCompat.tryReqs(this, new PermissionCompat.PerCompatCallbackAdpt() {
@Override
public void ok(int cmds) {
System.out.println("==============权限通过了==============");
}
@Override
public void refuse(int cmds) {
System.out.println("==============权限被拒绝了==============");
}
// 还未添加功能
@Override
public void goSettings(int cmds) {
System.out.println("==============请去setting界面==============");
}
}, Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_PHONE_STATE,Manifest.permission.CAMERA);
fragment中,一行代马
PermissionCompat.tryReqs(getActivity(), new PermissionCompat.PermissionCompatCallbackImplAdpt() {
@Override
public void ok(int cmds) {
System.out.println("==============权限通过了老哥==============");
}
}, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE);
