我从我的应用程序调用。在通话结束后，我试图获得通话时间。但我的代码返回呼叫持续时间两次。结束通话后拨打电话的最后通话时间和新通话时间。但是在用户结束新呼叫后我只需要一个呼叫持续时间。我怎样才能做到这一点。这是我的代码。提前致谢。
public class MainActivity extends AppCompatActivity {
private static final int CALL_PERMISSION= 99;
private static final int READ_LOG_PERMISSION=11;
Button btnGetCallDuration;
Context mContext;
private int mFlag = 0;
String phNumber = "";
boolean flag=false;
String callDuration = "";
public static int REQ_CODE=1;
private boolean callPermission=false;
private boolean readlogPermission=false;
public static final int MULTIPLE_PERMISSIONS = 10; // code you want.
String[] permissions = new String[] {
Manifest.permission.READ_CALL_LOG,
Manifest.permission.CALL_PHONE,
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = MainActivity.this;
btnGetCallDuration = (Button) findViewById(R.id.btnGetCallDuration);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkPermissions();
}
btnGetCallDuration.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.v("onclick", "called");
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:121"));
startActivity(intent);
//flag = true;
}
});
}
private boolean checkPermissions() {
int result;
List<String> listPermissionsNeeded = new ArrayList<>();
for (String p:permissions) {
result = ContextCompat.checkSelfPermission(mContext,p);
if (result != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(p);
}
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new
String[listPermissionsNeeded.size()]), MULTIPLE_PERMISSIONS);
return false;
}
return true;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.v("request code",requestCode+"\t"+resultCode);
if(requestCode==REQ_CODE)
{
Log.v("request code",requestCode+"");
// getCallDruation();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MULTIPLE_PERMISSIONS: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permissions granted.
callPermission=true;
} else {
// no permissions granted.
callPermission=false;
}
return;
}
}
}
@Override
protected void onPause() {
super.onPause();
Log.v("Pause is called","pause");
flag=true;
}
public boolean checkLocationPermission() {
if (ContextCompat.checkSelfPermission(mContext,
Manifest.permission.CALL_PHONE)
!= PackageManager.PERMISSION_GRANTED) {
// Asking user if explanation is needed
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
Manifest.permission.CALL_PHONE)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.CALL_PHONE},
CALL_PERMISSION);
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.CALL_PHONE},
CALL_PERMISSION);
}
return false;
} else {
return true;
}
}
public boolean readCallLogPermission() {
if (ContextCompat.checkSelfPermission(mContext,
Manifest.permission.READ_CALL_LOG)
!= PackageManager.PERMISSION_GRANTED) {
// Asking user if explanation is needed
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
Manifest.permission.READ_CALL_LOG)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.READ_CALL_LOG},
READ_LOG_PERMISSION);
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.CALL_PHONE},
READ_LOG_PERMISSION);
}
return false;
} else {
callPermission=true;
return callPermission;
}
}
@Override
protected void onResume() {
super.onResume();
Log.v("flag","onrsume called");
if(flag)
{
getCallDruation();
flag=false;
}
}
private void getCallDruation() {
StringBuffer sb = new StringBuffer();
Uri contacts = CallLog.Calls.CONTENT_URI;
Log.v("get duration","called");
Cursor cur = getContentResolver().query(contacts, null, null, null, android.provider.CallLog.Calls.DATE + " DESC");
int number = cur.getColumnIndex(CallLog.Calls.NUMBER);
int duration = cur.getColumnIndex(CallLog.Calls.DURATION);
sb.append("Call Details : \n");
while (cur.moveToNext()) {
phNumber = cur.getString(number);
callDuration = cur.getString(duration);
sb.append("\nPhone Number:" + phNumber+"\t"+callDuration);
break;
}
cur.close();
String str = sb.toString();
Log.v("restult",str);
Toast.makeText(mContext, phNumber + "\t\t" + callDuration, Toast.LENGTH_SHORT).show();
}
}
以上代码是从onResume（）生命周期活动方法调用的。