Question

android中edittext怎么监听字体长度

Answer 1

这个监听就是addTextChangedListener(EditText s).

    public class EditTextActivity extends Activity implements OnClickListener{  
        private EditText adb_password;  
        public boolean change = false;  
        private LinearLayout adb_lin2;  
        private Button button1;  
        private Button button2;  
          
        @Override  
        protected void onCreate(Bundle savedInstanceState) {  
            super.onCreate(savedInstanceState);  
            setContentView(R.layout.kvadb);  
              
            adb_password = (EditText) findViewById(R.id.adb_password);  
            adb_lin2 = (LinearLayout) findViewById(R.id.adb_lin2);  
            button1 = (Button) findViewById(R.id.button1);  
            button2 = (Button) findViewById(R.id.button2);  
              
            button1.setOnClickListener(this);  
            button2.setOnClickListener(this);  
              
            adb_password.addTextChangedListener(mEditText);  
        }  
          
        TextWatcher mEditText = new TextWatcher() {  
            private CharSequence temp;  
              
            @Override  
            public void onTextChanged(CharSequence s, int start, int before, int count) {  
                temp = s;  
            }  
              
            @Override  
            public void beforeTextChanged(CharSequence s, int start, int count,  
                    int after) {  
                adb_password.setVisibility(View.VISIBLE);  
                adb_lin2.setVisibility(View.GONE);  
            }  
              
            @Override  
            public void afterTextChanged(Editable s) {  
                if(adb_password.getText().length() == 6){  
                    if(adb_password.getText().toString().equals("111111")){  
                        adb_password.setVisibility(View.GONE);  
                        adb_password.setFocusableInTouchMode(false);  
                        adb_password.setFocusable(false);  
                        adb_lin2.setVisibility(View.VISIBLE);  
                        adb_lin2.setFocusableInTouchMode(true);  
                        button1.requestFocus();  
                    }  
                }  
      
            }  
        };  
      
          
        @Override  
        public void onClick(View v) {  
            switch (v.getId()) {  
            case R.id.button1:  
                Toast.makeText(KvAdb.this, "llll", 0).show();  
                break;  
            case R.id.button2:  
      
                finish();  
                break;  
            }  
        }  
    }